26 research outputs found
Neoechinorhynchus (Neoechinorhynchus) mexicoensis Pinacho-Pinacho, Sereno-Uribe
No full textNeoechinorhynchus (Neoechinorhynchus) mexicoensis Pinacho-Pinacho, Sereno-Uribe & García- Varela, 2014 (Fig. 2 f) Mexico: CAMPECHE: El Milagro (18 ° 52 ’ 25.37 ’’N 91 ° 24 ’ 39.62 ’’W); Dormitator maculatus (this study). TABASCO: Río el Espino (18 ° 14 ’ 47 ’’N 92 ° 49 ’ 57 ’’W); Dormitator maculatus (Pinacho-Pinacho et al. 2014); Petenia splendida (this study). VERACRUZ: Laguna de Tamiahua (18 ° 6.6 ’ 24 ’’N 94 ° 27 ’ 24.9 ’’W); Dormitator maculatus (Pinacho-Pinacho et al. 2014). Río Papaloapan, Tlacotalpan (18 ° 36 ’0’’N 95 ° 39 ’0’’W); Dormitator maculatus (Salgado-Maldonado et al. 2005 b; Pinacho-Pinacho et al. 2014); Cichlasoma urophthalmum (Salgado- Maldonado et al. 2005 b; Martínez-Aquino et al. 2009); Gobiomorus dormitor (Velázquez-Silvestre 1994; Salgado- Maldonado et al. 2005 b), Rhamdia guatemalensis (Salgado-Maldonado et al. 2005 b). Laguna de Alvarado (18 ° 45 ’0’’N 95 ° 45 ’0’’W); Dormitator maculatus (Chávez-López et al. 1996; Montoya-Mendoza et al. 2004 a, b; Martínez-Aquino et al. 2009; García-Varela et al. 2011); Centropomus parallelus, Cichlasoma urophthalmum (Trujillo-Álvarez 1995). Laguna de Sontecomapa (18 ° 30 ’ 28 ’’N 95 ° 1 ’ 58 ’’W); Dormitator maculatus (Pinacho- Pinacho et al. 2014). Río Coatzacoalcos (18 ° 6 ’ 35 ’’N 94 ° 30 ’ 3.9 ’’W); Dormitator maculatus (Pinacho-Pinacho et al. 2014). Río la palma (18 ° 33 ’ 44.88 ’’N 95 ° 2 ’ 59.39 ’’W); Dormitator maculatus (this study). Río Tesechoacán (18 ° 36 ’0’’N 95 ° 39 ’0’’W); Cichlasoma urophthalmum (Salgado-Maldonado 2013). Specimens deposited. CNHE (8599, 8334, 8673, 8332, 8333, 6759, 6760, 8597, 8598, 8596, 3077, 8393). Notes. This species was erroneously identified as N. (N.) golvani by Salgado-Maldonado et al. (2005 b). Martínez-Aquino et al. (2009) recognized the specimens from eleotrif fishes in coastal lagoons across the Gulf of Mexico slope as independent lineages. The species was finally described using both, molecular and morphological characteres by Pinacho-Pinacho et al. 2014).Published as part of Pinacho-Pinacho, Carlos Daniel, Sereno-Uribe, Ana L., León, Gerardo Pérez-Ponce De & García-Varela, Martín, 2015, Checklist of the species of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) in fishes and turtles in Middle-America, and their delimitation based on sequences of the 28 S rDNA, pp. 98-116 in Zootaxa 3985 (1) on page 106, DOI: 10.11646/zootaxa.3985.1.5, http://zenodo.org/record/24107
FIGURE 2 in Checklist of the species of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) in fishes and turtles in Middle-America, and their delimitation based on sequences of the 28 S rDNA
No full textFIGURE 2. Males of species of Neoechinorhynchus known from Middle-America. a) N. (N.) brentnickoli Monks, Pulido- Flores & Violante-González, 2011. b) N. (N.) chimalapasensis Salgado-Maldonado, Caspeta-Mandujano & Martínez-Ramírez, 2010. c) N. (N.) emyditoides Fisher, 1960. d) N. (N.) golvani Salgado-Maldonado, 1978. e) N. (N.) mamesi Pinacho-Pinacho, Pérez-Ponce de León & García-Varela 2012. f) N. (N.) mexicoensis Pinacho-Pinacho, Sereno-Uribe & García-Varela, 2014. g) N. (N.) panucensis Salgado-Maldonado, 2013. h) N. (N.) roseum Salgado-Maldonado, 1978. i) N. (N.) schmidti Barger, Thatcher & Nickol, 2004. Scale bars = 1.0 mmPublished as part of Pinacho-Pinacho, Carlos Daniel, Sereno-Uribe, Ana L., León, Gerardo Pérez-Ponce De & García-Varela, Martín, 2015, Checklist of the species of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) in fishes and turtles in Middle-America, and their delimitation based on sequences of the 28 S rDNA, pp. 98-116 in Zootaxa 3985 (1) on page 103, DOI: 10.11646/zootaxa.3985.1.5, http://zenodo.org/record/24107
Cichlidocestus janikae Alain de Chambrier & Carlos Daniel Pinacho-Pinacho & Jesus Servando Hernández-Orts & Tomáš Scholz 2017, n. sp.
No full textCichlidocestus janikae n. sp. (Figs. 8–19) Diagnosis (based on 6 specimens and anterior parts of 2 specimens studied using SEM from H. nicaraguensis in Costa Rica; measurements in micrometers unless otherwise stated; x ‾ = mean, n = number of measurements): Proteocephalidae, Proteocephalinae. Total body length up to 10 mm, maximum width 675 (n = 2). Strobila acraspedote (Fig. 17), anapolytic, consisting of about 30–32 proglottids: 23–24 immature, 1–2 mature, 4–6 pregravid, 1 gravid proglottid. Immature and mature proglottids wider than long (length:width ratio 0.28–0.69), pregravid and gravid proglottids wider than long to longer than wide (length: width ratio 0.69–1.54). Scolex 240–260 long and 440–520 wide (n = 3), wider than neck (proliferation zone), 730–790 long and 330–440 wide. Scolex rosette-like, with 4 prominent lobes posteriorly, separated from one another by longitudinal grooves, each lobe bearing in center small uniloculate sucker, with internal circular musculature on its distal margin (Figs. 8–10); diameter of suckers 120–140 (n = 12). Apical part slightly conical, with a muscular sucker 70–75 long and 90–95 wide (Figs. 8, 10). Numerous cells with granular content situated between suckers. Apex of scolex, sucker cavities, anterior part of scolex, and proliferation zone covered with capilliform filitriches of similar appearance and density; proglottids covered with acicular spinitriches (data not shown). Inner longitudinal musculature well-developed, formed by 1 irregular row of numerous small bundles of muscle fibers (Figs. 11, 12). Eight to 10 anastomosed ventral osmoregulatory canals situated in medulla beneath fibers of inner longitudinal musculature (Figs. 11, 12). Dorsal osmoregulatory canals paired, thickwalled, narrow. Testes ovoid, small, 40–70 long and 35–45 wide, in 3–4 irregular layers, 63–74 (x ‾ = 70, n = 3) in number. Testes form 2 well separated groups (poral and aporal – Fig. 13), present also dorsal to cirrus-sac and vagina (Fig. 16): aporal group with 33–42 testes, and poral group with 27–38 testes. Posteriormost testes approach, but do not reach, to posterior margin of proglottids, being posterior to ovary (Fig. 13). Testes disappear in first pregravid proglottids. Vas deferens strongly coiled, with loops forming elongated field crossing median line of proglottid (Fig. 13). Cirrus-sac pyriform to elongate, thin-walled, widened towards proximal part (Fig. 16), 110–135 long and 55–80 wide (n = 6), cirrus-sac length:width ratio 1.2–2.3, length of cirrus-sac represents 17–23% (x ‾ = 20%, n = 6) of proglottid width. Internal seminal vesicle voluminous, spherical, occupies almost entirely proximal half of cirrus-sac (Fig. 16). Cirrus short, muscular, reaching up to 40% of cirrus-sac length (n = 6). Common genital atrium narrow, deep (Figs. 13, 16), alternating irregularly, situated near anterior margin of proglottids, at 10–15% (x ‾ = 12, n = 6) of their length (Figs. 13, 16). Ovary medullary, bilobed, with narrow, equatorially situated isthmus and 2 follicular (grape-like) lateral wings, occupying middle and posterior third of median space of proglottids (Fig. 13); length of ovary represents 43–57% of proglottid length (x ‾ = 50%, n = 12) and its width 35–46% of proglottid width (x ‾ = 41%, n = 7). Mehlis’ gland about 65–90 in diameter, representing 10– 14% of proglottid width (n = 5). Relative ovarian size (see de Chambrier et al., 2012) about 18% of size of mature and pregravid proglottids. Ovary disintegrates soon after appearance of first eggs (in third or fourth pregravid proglottid). Vaginal canal almost straight in proximal part, slightly sinuous in distal part, with an elongated thick-walled seminal receptacle full of sperms in mature and first pregravid proglottids situated anterior to ovary isthmus (Fig. 13); terminal (distal) part of vaginal canal (pars copulathrix vaginae) surrounded by chromophilic cells and large, spherical vaginal sphincter (Fig. 16). Vagina posterior to cirrus-sac (n = 26). Vitelline follicles medullary, forming 2 long, narrow, lateral bands not reaching to anterior margin of proglottids; follicles absent preporally, i.e., anterior to cirrus-sac on poral side (Figs. 13, 16). Length of bands represents 63–69% (x ‾ = 66%, n = 6) and 68–69% (x ‾ = 69%, n = 6) of length of proglottid on poral and aporal side, respectively, width of vitelline bands represent 8–11% of proglottid width. Uterus medullary, with development of type 2 of de Chambrier et al. (2004a), i.e., uterine stem present as elongated longitudinal median concentration of chromophilic cells in immature proglottids, with lumen appearing in last immature proglottids. In mature proglottids, uterine stem thin-walled, with median lumen and almost invisible, long, and digitate diverticula. In pregravid proglottids, uterine diverticula (lateral uterine branches) thinwalled, digitate, lined with few chromophilic cells. Uterus with 8– 12 lateral diverticula on each side. Eggs become progressively larger as they mature, considerably larger in gravid proglottids compared to those in most pregravid ones. Eggs spherical, hyaline outer envelope up to 100 in diameter (measured in eggs released from unmounted proglottids to water); embryophore bilayered, with external layer 44–46 in diameter and internal nucleate envelope 36–40 in diameter; oncosphere subspherical to spherical, 22–25 long and 20–22 wide, with 6 embryonic hooks 10–11 long (Figs. 14, 15). Uterine pore-like openings not observed. Taxonomic summary Type and only host: Hypsophrys nicaraguensis (Günther, 1864) (Perciformes: Cichlidae), vernacular name ‘moga amarilla’ (host field No. 844). Type locality: Lake Arenal, Guanacaste Province, Costa Rica (10 8 29 ′ 18 ′ ′ N, 84 8 50 ′ 29 ′ ′ W). Site of infection: Intestine. Infection rate: One of 3 H. nicaraguensis from Lake Arenal examined on 19 February 2015 was infected with a hundred tapeworms (prevalence 33%; total length of infected fish 8 cm); the remaining 37 fish from other rivers in Guanacaste Province examined in February 2015 were negative. Deposition of specimens: Holotype MHNG-PLAT 94085 (1 whole mount with a complete specimen and cross sections) and IPCAS C-734 (cross sections); 4 paratypes (IPCAS C-734; whole mounts of 1 complete and 2 incomplete specimens) and cross sections, 1 paratype (CNHE 10044; whole mount of 1 incomplete specimen), 1 paratype MHNG-PLAT 94086 (whole mount of a complete specimen and cross sections), 1 voucher (MHNG-PLAT 94087; anterior ends of 2 specimens and cross sections); all specimens from H. nicaraguensis (host field No. 844). Etymology: Specific name refers to Janik Pralong from the Natural History Museum in Geneva for her excellent technical assistance over the past 10 yr. Remarks Cichlidocestus janikae shares with C. gillesi, type species of the genus, the characteristics unique or rare among the Proteocephalidea such as the possession of a large ovary occupying two-thirds of the medial region of proglottids, with grape-like (follicular) lateral wings (Fig. 13), a peculiar morphology of the cirrus-sac, which contains a spherical internal seminal vesicle in its proximal part (Fig. 16), a quadrilobed scolex with a well-developed muscular apical sucker (Figs. 8–10, 18, 19), several anastomosed ventral osmoregulatory canals, and the testes disappearing in the first pregravid proglottids. The new species from Costa Rica can be distinguished from C. gillesi by the extent of vitelline follicles on the poral side, with follicles absent anterior to the cirrus-sac and vagina (Figs. 13, 16; vs. present preporally in P. gillesi; see Figs. 2–4), larger eggs (diameter of the external layer of the embryophore 44–46 µm in C. janikae vs. 30–33 µm in C. gillesi) that increase during their development in the uterus in the former species (in C. gillesi, they do not increase markedly during their intrauterine development), fewer uterine diverticula (8–12 in C. janikae vs. 16–21 in the latter species), and more testes (63–74 in C. janikae vs. 37–46 in C. gillesi).Published as part of Alain de Chambrier, Carlos Daniel Pinacho-Pinacho, Jesus Servando Hernández-Orts & Tomáš Scholz, 2017, A New Genus And Two New Species Of Proteocephalidean Tapeworms (Cestoda) From Cichlid Fish (Perciformes: Cichlidae) In The Neotropics, pp. 83-94 in J. Parasitol. 103 (1) on pages 89-90, DOI: 10.1645/16-84, http://zenodo.org/record/58074
Cichlidocestus gillesi Alain de Chambrier & Carlos Daniel Pinacho-Pinacho & Jesus Servando Hernández-Orts & Tomáš Scholz 2017, n. sp.
No full textCichlidocestus gillesi n. sp. (Figs. 1–7, 20–22) Diagnosis (based on 4 specimens from Cichlasoma amazonarum in Peru including 1 scolex studied using SEM; measurements in micrometers unless otherwise stated; x ‾ = mean, n = number of measurements): Proteocephalidae, Proteocephalinae. Total body length 11–13 mm (n = 2), maximum width up to 760 (n = 3). Strobila acraspedote, anapolytic, consisting of about 35–38 proglottids: 25–30 immature (up to appearance of spermatozoa in vas deferens), 1–2 mature (up to appearance of eggs in uterus), 6–7 pregravid (up to appearance of hooks in oncospheres), 1 gravid proglottid. Immature and mature proglottids wider than long (length:width ratio 0.32–0.66), pregravid and gravid proglottids wider than long to longer than wide (length:width ratio 0.71–2.21). Scolex 240–245 long and 360–505 wide (n = 3), wider than neck (proliferation zone), 570–590 long and 410–470 wide (Figs. 1, 20, 21). Suckers spherical, 120–140 (n = 8) in diameter, with anterior distal margin lined with circular musculature (Fig. 1). Apical part of scolex with a muscular apical sucker, 75–80 long 3 85–90 wide, and numerous cells with granular content between suckers (Fig. 1). Apex of scolex, sucker cavities, anterior part of scolex, and proliferation zone covered with capilliform filitriches of similar appearance and density; proglottids covered with acicular filitriches (data not shown). Inner longitudinal musculature well-developed, formed by 1 irregular row of numerous small bundles of muscle fibers (Fig. 7). Eight to 10 anastomosed ventral osmoregulatory canals situated in medulla, just beneath fibers of inner longitudinal musculature 10–20 wide (Fig. 4). Two to 3 dorsal osmoregulatory canals thickwalled, narrow, about 5 in diameter. Testes ovoid, small, 35–45 long and 25–35 wide, in 3–4 irregular layers, 37–46 in number (x ‾ = 42, n = 5). Testes form 2 wellseparated groups, with some testes dorsal to cirrus-sac and vagina (Fig. 4); aporal group with 17–22 testes, poral group with 19–26 testes. Posteriormost testes approach, but do not reach, posterior margin of proglottids, being posterior to ovary, but not posterior to posteriormost vitelline follicles (Fig. 4). Testes disappear in first pregravid proglottids. Vas deferens strongly coiled, with loops forming elongate field crossing median line of proglottid (Fig. 4). Cirrus-sac pyriform to elongate, thin-walled, widened towards proximal part (Fig. 2), 125–140 long and 40–70 wide (n = 6), cirrus-sac length:width ratio 1.95–3.5, length of cirrus-sac represents 21–28% (x ‾ = 25%, n = 6) of proglottid width. Internal sperm duct enlarged to form voluminous, spherical internal seminal vesicle occupying proximal 1/3–1/2 of cirrus-sac (Fig. 2). Cirrus short, muscular, reaching up to 40% of cirrus-sac length (n = 6). Common genital atrium narrow, deep (Fig. 2), alternating irregularly, situated near anterior margin of proglottids, at 10–18% (x ‾ = 12, n = 6) of its length from anterior margin (Figs. 3, 4). Ovary medullary, bilobed, with narrow isthmus situated almost equatorially, and 2 follicular (grape-like) lateral wings (Fig. 4), occupying two-thirds of median space of proglottids. Length of ovary represents 62–70% (x ‾ = 65%, n = 11) of proglottid length, its width representing 45–52% (x ‾= 48%, n = 6) of proglottid width (Fig. 4); ovary may reach laterally up to vitelline follicles. Mehlis’ gland about 65–90 in diameter, representing 11–17% of proglottid width (n = 5). Relative ovarian size, i.e., percentage of ovary surface to total surface of mature or pregravid proglottids (see de Chambrier et al., 2012), about 22%. Ovary disintegrates soon after appearance of first eggs (in fourth to fifth pregravid proglottid). Vaginal canal slightly sinuous; seminal receptacle ovoid, thickwalled, situated anterior to ovarian isthmus (Fig. 4), full of spermatozoids in mature and first pregravid proglottids; terminal (distal) part of vaginal canal (pars copulathrix vaginae) surrounded by chromophilic cells and large, spherical vaginal sphincter (Fig. 2). Vagina posterior to cirrus-sac (n = 30). Vitelline follicles medullary, forming 2 long, narrow lateral bands, absent anterior to cirrus-sac on poral side (Figs. 3, 4). Length of bands represents 89–93% (x ‾= 91%, n = 7) and 83–93% (x ‾ = 88%, n = 7) of length of proglottid on poral and aporal side, respectively, width of vitelline bands presents 11–13% of proglottid width. Uteroduct passing dorsal to ovarian isthmus, entering uterus anteriorly, at about 25% of length of proglottid from anterior margin. Uterus medullary, with development of type 2 (see de Chambrier et al., 2004a), i.e., uterine stem present as elongated longitudinal median concentration of chromophilic cells in immature proglottids, with lumen appearing in last immature proglottids. In mature proglottids, uterine stem thin-walled, with median lumen and almost invisible long and narrow digitate diverticula. In pregravid proglottids, uterine diverticula (lateral uterine branches) thinwalled, digitate, lined with few chromophilic cells. Uterus with 16– 21 lateral diverticula on each side (Fig. 3). Eggs spherical, with hyaline outer envelope (collapsed in whole mounts); embryophore bilayered, with external layer 30–33 in diameter and internal nucleate envelope 24–25 in diameter; oncosphere 14–15 in diameter, with 6 embryonic hooks 7–8 long (Figs. 5, 6). Ripe eggs released through 4–5 pore-like uterine openings on ventral side (Fig. 3). Taxonomic summary Type host: Cichlasoma amazonarum Kullander, 1983 (Perciformes: Cichlidae), vernacular name ‘bujurqui.’ Type locality: A private aquarium in Iquitos, Region of Loreto, Peru (3 8 12 ′ S, 52 8 12 ′ W); precise origin of fish is unknown, but they were captured near Iquitos (E. Panduro, pers. comm.). Site of infection: Anterior intestine. Infection rate: Three of 11 fish from a private aquarium of Edgard Panduro in Iquitos, Peru, examined by T. Scholz on 1 October 2008, were infected with 4 tapeworms (prevalence 27%; total length of infected fish 9, 12, and 12.5 cm; mean intensity 1.3; range 1–2); the remaining 20 fish from other localities around Iquitos examined by T. Scholz and A. de Chambrier in 2005 and 2009 were negative. Deposition of specimens: Holotype (MHNG-PLAT 63202; 1 whole mount with a complete specimen from the host of the field number PI 477a), 1 paratype (MHNG-PLAT 63208; whole mount with proglottids of a specimen from the host field number PI 474d), 1 paratype (IPCAS C-733; whole mount of the anterior part and several proglottids of a complete specimen from the host field numbers PI 470); all specimens were collected on 1 October 2008 by T. Scholz in Iquitos, Peru. Etymology: Specific name refers to Gilles Roth from the Natural History Museum in Geneva for his excellent illustrations (line drawings) of proteocephalidean cestodes made more than 20 yr ago. Molecular data: A fragment of 1,085 bp of the 28S rRNA gene of 1 specimen of C. gillesi was amplified. The nucleotide sequence is available in the GenBank database (Accession No. KY403889). Remarks The new species is designated as the type species of the new genus because its material is of a better quality compared to specimens of the second new species from Costa Rica (see below), and molecular data are available for C. gillesi. The fact that hosts of this species were found in a private aquarium in Iquitos does not enable us to locate their precise origin, but they were captured near Iquitos according to the provider of these fish (E. Panduro, Iquitos, pers. comm.). This species is typified by the morphological characteristics listed in the diagnosis of the new genus (see above) such as the peculiar appearance, size and position of the ovary with follicular, large lateral wings, which occupy middle and posterior thirds of the median region of proglottids (Fig. 4), presence of a voluminous internal seminal vesicle (Fig. 2) and several narrow, thin-walled ventral osmoregulatory canals in the medulla (Fig. 7), morphology of the scolex, which is quadrilobed and bears a muscular apical sucker with a deep cavity (Figs. 1, 20, 21), and the testes disappearing in the first pregravid proglottids. The new species was found only in 3 of 31 cichlids (overall prevalence less than 10%) examined. A comparative analysis of partial 28S rRNA gene sequences of 1 sample of C. gillesi (a piece of the holotype) with available sequences of proteocephalideans has revealed the closest relationship with another parasite of Neotropical cichlids, S. megalodiscus (Fig. 22). This species appeared at a very basal position compared to all other Neotropical proteocephalideans in a comprehensive molecular phylogenetic analysis of de Chambrier et al. (2015b), but its position was unstable. Interestingly, species of both genera from Neotropical cichlids share some peculiar morphological traits, namely (1) a large-sized ovary that occupies more than one-half of the proglottid lengths, but disappears soon after the eggs appear in the first pregravid proglottids; (2) internal sperm duct is enlarged in the proximal part of the cirrus-sac to form spherical internal seminal vesicle; (3) the anterior rim of suckers comprises a narrow band of circular musculature, thus forming a small sphincter near sucker opening; and (4) a functional apical sucker is present.Published as part of Alain de Chambrier, Carlos Daniel Pinacho-Pinacho, Jesus Servando Hernández-Orts & Tomáš Scholz, 2017, A New Genus And Two New Species Of Proteocephalidean Tapeworms (Cestoda) From Cichlid Fish (Perciformes: Cichlidae) In The Neotropics, pp. 83-94 in J. Parasitol. 103 (1) on pages 87-89, DOI: 10.1645/16-84, http://zenodo.org/record/58074
FIGURE 1 in Checklist of the species of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) in fishes and turtles in Middle-America, and their delimitation based on sequences of the 28 S rDNA
No full textFIGURE 1. Map showing the localities of Neoechinorhynchus spp. Numbers of localities correspond with the numbers presented in Table 1. DNA from specimens from localities 1-51 (CS in Table 1) was analyzed for this study.Published as part of Pinacho-Pinacho, Carlos Daniel, Sereno-Uribe, Ana L., León, Gerardo Pérez-Ponce De & García-Varela, Martín, 2015, Checklist of the species of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) in fishes and turtles in Middle-America, and their delimitation based on sequences of the 28 S rDNA, pp. 98-116 in Zootaxa 3985 (1) on page 100, DOI: 10.11646/zootaxa.3985.1.5, http://zenodo.org/record/24107
Neoechinorhynchus (Neoechinorhynchus) emyditoides Fisher 1960
No full textNeoechinorhynchus (Neoechinorhynchus) emyditoides Fisher, 1960 (Fig. 2 c) Mexico: NUEVO LEÓN: Presa la Herradura (25 ° 54 ’ 15 ’’N 98 ° 52 ’ 6 ’’W); Trachemys scripta (García-Varela et al. 2011). VERACRUZ: Lago de Catemaco (18 ° 25 ’0’’N 95 ° 7 ’0’’W); Trachemys scripta (García-Varela et al. 2011). Laguna de Alvarado; (18 ° 45 ’0’’N 95 ° 45 ’0’’W) Trachemys scripta (Barger 2004). Río Papaloapan, Tlacotalpan (18 ° 42 ’ 13.4 ’’N 95 ° 45 ’ 27.9 ’’W); Trachemys scripta (García-Varela et al. 2011). Specimens deposited. CNHE (6695 -6696, 6737), HWML (45557), HWML (45560), HWML (45557), HWML (45558), USNPC (832354). Notes. This species was described from Trachemys scripta in Arkansas and Mississippi USA by Fisher (1960). Later this species was recorded in several localities of North America (Barger 2004). In Mexico the first record of N. (N.) emyditoides was made by Bravo-Hollis in 1946, however it was described as N. (N.) emydis. Later Barger (2004), Barger et al. (2004), mentioned that N. (N.) emydis is restricted the eastern half of the upper Mississippi river.Published as part of Pinacho-Pinacho, Carlos Daniel, Sereno-Uribe, Ana L., León, Gerardo Pérez-Ponce De & García-Varela, Martín, 2015, Checklist of the species of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) in fishes and turtles in Middle-America, and their delimitation based on sequences of the 28 S rDNA, pp. 98-116 in Zootaxa 3985 (1) on page 102, DOI: 10.11646/zootaxa.3985.1.5, http://zenodo.org/record/24107
Neoechinorhynchus (Neoechinorhynchus) panucensis Salgado-Maldonado 2013
No full textNeoechinorhynchus (Neoechinorhynchus) panucensis Salgado-Maldonado, 2013 (Fig. 2 g) Mexico: HIDALGO: Río Atlapexco (21 °0’ 53 ’’N 98 ° 20 ’ 24 ’’W); Herichthys labridens, Amatitlania nigrofasciata and Herichthys cyanoguttatus (Salgado-Maldonado 2013). SAN LUIS POTOSÍ: Axtlan de Terrazas (21 ° 26 ’ 1 ’’N 98 ° 52 ’ 28 ’’W); Herichthys cyanoguttatus (Martínez-Aquino et al. 2009). VERACRUZ: Río Pantepec (20 ° 53 ’ 35.8 ’’N 97 ° 47 ’ 18.8 ’’W); Herichthys sp. (this study). Specimens deposited. CNHE (8378, 8379, 8380). Notes. This species was erroneously identified as N. (N.) golvani by Salgado-Maldonado (2006). Martínez- Aquino et al. (2009) recognized the specimens from cichlids fishes from Pánuco river as independent lineages and based on this phylogenetic framework Salgado-Maldonado (2013), described these specimens as a new species.Published as part of Pinacho-Pinacho, Carlos Daniel, Sereno-Uribe, Ana L., León, Gerardo Pérez-Ponce De & García-Varela, Martín, 2015, Checklist of the species of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) in fishes and turtles in Middle-America, and their delimitation based on sequences of the 28 S rDNA, pp. 98-116 in Zootaxa 3985 (1) on page 106, DOI: 10.11646/zootaxa.3985.1.5, http://zenodo.org/record/24107
Morphological and molecular data on a new species of Plagiorhynchus Lühe, 1911 (Acanthocephala: Plagiorhynchidae) from the long-billed curlew (Numenius americanus) from northern Mexico
No full textA new species of the genus Plagiorhynchus Lühe, 1911 from the intestine of the long-billed curlew Numenius americanus from northern Mexico is described. Plagiorhynchus Plagiorhynchus aznari n. Sp. Is morphologically distinguished from other congeneric species from the Americas by having a trunk expanded anteriorly and a cylindrical proboscis, armed with 19 longitudinal rows of hooks, with 14-15 hooks each row. Nearly complete sequences of the small subunit and large subunit of the nuclear ribosomal DNA of the new species were determined and compared with available sequences from GenBank. Phylogenetic analyses inferred from the two molecular markers consistently showed that P. Plagiorhynchus aznari n. Sp. Is closely related to P. Plagiorhynchus allisonae, and this clade is sister to a clade formed by P. Prosthorhynchus transversus and P. Prosthorhynchus cylindraceus from Plagiorhynchidae. The new species represents the second record of the genus in Mexico and the fourth species in the Americas. The phylogenetic relationships among the members of the order Polymorphida in this study provide significant insights into the evolution of ecological associations between parasites and their definitive hosts. Our analyses suggest that the colonization of marine mammals, fish-eating birds and waterfowl in Polymorphidae might have occurred independently, from a common ancestor of Centrorhynchidae and Plagiorhynchidae that colonized terrestrial birds and mammals.Fil: García Varela, Martín. Universidad Nacional Autónoma de México; MéxicoFil: Park, J. K.. Ewha WomansUniversity; Corea del SurFil: Hernández Orts, Jesús Servando. Universidad Nacional del Comahue. Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos "Almirante Storni". - Provincia de Río Negro. Ministerio de Agricultura, Ganadería y Pesca. Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos "Almirante Storni". Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet Centro Nacional Patagónico. Centro de Investigación Aplicada y Transferencia Tecnológica en Recursos Marinos "Almirante Storni"; ArgentinaFil: Pinacho Pinacho, Carlos Daniel. Consejo Nacional de Ciencia y Tecnología; Méxic
Neoechinorhynchus (Neoechinorhynchus) golvani Salgado-Maldonado 1978
No full textNeoechinorhynchus (Neoechinorhynchus) golvani Salgado-Maldonado, 1978 (Fig. 2 d) Mexico: CAMPECHE: Hool (19 ° 30 ’ 51.82 ’’N 90 ° 26 ’ 55.13 ’’W); Thorichthys meeki (this study). Lago el Centenario (18 ° 37 ’ 50 ’’N 91 ° 56 ’ 21 ’’W); Amphilophus robertsoni, Cichlasoma rectangulare, Cichlasoma urophthalmum, Parachromis managuensis and Petenia splendida (Salgado-Maldonado et al. 1997); Herichthys pearsei and Vieja synspila (Vidal-Martínez 1995). Laguna El Vapor (18 ° 18 ’ 38 ’’N 91 ° 50 ’ 9 ’’W); Cichlasoma geddesi, Cichlasoma urophthalmum, Herichthys pearsei, Parachromis managuensis and Petenia splendida (Pineda-López 1994; Salgado-Maldonado et al. 1997); Cichlasoma urophthalmum (Vidal-Martínez 1995; Salgado- Maldonado & Kennedy 1997); Petenia splendida (Vidal-Martínez 1995). Laguna de Términos, Río Palizada (18 ° 17 ’ 16 ’’N 91 ° 56 ’ 52 ’’W); Cichlasoma urophthalmum (Salgado-Maldonado & Kennedy 1997; Salgado- Maldonado et al. 1997). Laguna de Términos, el Cayo (18 ° 30 ’ 10 ’’N 91 ° 41 ’ 20 ’’W); Cichlasoma urophthalmum (Salgado-Maldonado & Kennedy 1997; Salgado-Maldonado et al. 1997). Laguna de Términos, Santa Gertrudis (18 ° 26 ’ 51 ’’N 91 ° 49 ’ 38 ’’W); Cichlasoma urophthalmum (Salgado-Maldonado et al. 1997). Lago Atasta (18 ° 37 ’ 8 ’’N 92 ° 6 ’ 15 ’’W); Cichlasoma urophthalmum and Paraneetroplus synspilus (Vidal-Martínez 1995; Salgado-Maldonado et al. 1997). Río Champotón (19 ° 21 ’0’’N 90 ° 40 ’0’’W); Cichlasoma urophthalmum (Salgado- Maldonado et al. 1997); Thorichthys helleri (Salgado-Maldonado 2013). Laguna de Términos, Llanuras (18 ° 19 ’ 13 ’’N 91 ° 44 ’ 36 ’’W); Paraneetroplus synspilus (Vidal-Martínez & Kennedy 2000). Silvituc (18 ° 37 ’0’’N 91 ° 56 ’0’’W); Amphilophus robertsoni, Paraneetroplus synspilus and Paraneetroplus bifasciatus (Salgado- Maldonado 2013). CHIAPAS: Presa Chicoasen (16 ° 56 ’ 2 ’’N 93 ° 5 ’ 16 ’’W); Vieja pearsei (Martínez-Aquino et al. 2009; García-Varela et al. 2011; Pinacho-Pinacho et al. 2012). Presa Nezahualcoyolt (17 ° 10 ’ 49 ’’N 93 ° 36 ’ 49 ’’W); Vieja pearsei (Martínez-Aquino et al. 2009; Pinacho-Pinacho et al. 2012). Río Lacantún, el Remolino (16 ° 14 ’ 46 ’’N 90 ° 50 ’ 8 ’’W); Cichlasoma urophthalmum and Thorichthys helleri (Salgado-Maldonado et al. 2011). Río San Pedro, Tzendales (16 ° 17 ’ 54 ’’N 90 ° 53 ’ 13 ’’W); Petenia splendida (Salgado-Maldonado et al. 2011). Río la Urbina (15 ° 46 ’ 27 ’’N 93 ° 15 ’ 21 ’’W); Gobiomorus maculatus (Salgado-Maldonado et al. 2011). GUERRERO: Presa Tepecoacuilco (18 ° 18 ’ 1 ’’N 99 ° 28 ’ 16 ’’W); Cichlasoma istlanum (Salgado-Maldonado et al. 2001 a; Salgado- Maldonado 2013); Amphilophus macracanthus (Salgado-Maldonado 2013). HIDALGO: Río Tempoal, Atlapexco (20 ° 55 ’ 16 ’’N 98 ° 17 ’ 27 ’’W); Amatitlania nigrofasciata, Herichthys cyanoguttatus and Herichthys labridens (Salgado-Maldonado et al. 2004); Herichthys labridens (Salgado-Maldonado 2013). NAYARIT: Río Santiago, Presa Aguamilpa (21 ° 46 ’ 42 ’’N 104 ° 55 ’ 36 ’’W); Cichlasoma beani (Salgado-Maldonado et al. 2001 b; Salgado- Maldonado 2013). OAXACA: Temascal (18 ° 14 ’ 13 ’’N 96 ° 25 ’ 0.27 ’’W); Cichlasoma urophthalmum, Cichlasoma salvini (this study); Petenia splendida (Morales-Sosa 2008; Salgado-Maldonado 2013). San Juan Evangelista; Rocio octofasciata, Thorichthys ellioti (Salgado-Maldonado 2013). TABASCO: Río Carrizal (18 ° 1 ’ 45 ’’N 92 ° 55 ’0’’W); Cichlasoma urophthalmum (Martínez-Aquino et al. 2009; Pinacho-Pinacho et al. 2012; García- Varela et al. 2011). Lago Canitzan, Tenosique (17 ° 28 ’ 57 ’’N 91 ° 25 ’ 27 ’’W); Parachromis friedrichstalii (Martínez- Aquino et al. 2009; Pinacho-Pinacho et al. 2012). Laguna las Ilusiones (17 ° 59 ’ 46 ’’N 92 ° 56 ’ 17 ’’W); Cichlasoma urophthalmum (Pérez-Ponce de León et al. 1996; Martínez-Aquino et al. 2009; Pinacho-Pinacho et al. 2012); Cichlasoma salvini (Vidal-Martínez et al. 2001); Thorichthys helleri, Thorichthys pasionis and Paraneetroplus synspilus (Ramírez-Jiménez 1993; García-Magaña 1990; Pineda-López 1994; Salgado-Maldonado et al. 1997). Lago el Rosario (17 ° 50 ’0’’N 93 ° 45 ’0’’W); Ariopsis felis, Cathorops melanopus, Paraneetroplus synspilus and Hyporhamphus mexicanus (Fucugauchi-Suárez del Real et al. 1988); Strongylura sp. (Fucugauchi-Suárez del Real et al. 1988; Vidal-Martínez 1995); Cichlasoma geddesi (Pineda-López 1994); Thorichthys helleri (Fucugauchi- Suárez del Real et al. 1988; Pineda-López 1994; Vidal-Martínez 1995). Lago Santa Anita (18 ° 22 ’ 15 ’’N 92 ° 53 ’ 10 ’’W); Cichlasoma geddesi, Cichlasoma rectangulare, Cichlasoma urophthalmum, Cichlasoma pearsei, Petenia splendida, Paraneetroplus fenestratus and Paraneetroplus synspilus (Pineda-López et al. 1985; Pineda- López 1994; Salgado-Maldonado et al. 1997). Estanque Tucta (18 ° 10 ’ 40 ’’N 92 ° 56 ’ 1 ’’W); Cichlasoma geddesi, Cichlasoma urophthalmum, Parachromis friedrichstahlii, Thorichthys pasionis and Paraneetroplus synspilus (Salgado-Maldonado et al. 1997). Lago el Chiribital (17 ° 59 ’ 24 ’’N 93 ° 4 ’ 22 ’’W; 17 ° 59 ’0’’N 93 ° 4 ’0’’W); Cichlasoma rectangulare, Cichlasoma urophthalmum, Cichlasoma pearsei, Petenia splendida, Thorichthys meeki, Thorichthys pasionis, Paraneetroplus fenestratus, and Ictalurus furcatus (Salgado-Maldonado 1985); Cichlasoma sp., Cichlasoma urophthalmum, Petenia splendida, Thorichthys meeki and Thorichthys pasionis (Osorio-Sarabia et al. 1987); Cichlasoma urophthalmum, Thorichthys meeki and Thorichthys pasionis (Salgado-Maldonado 2013). Lago el Espino (18 ° 14 ’ 57 ’’N 92 ° 49 ’ 59 ’’W); Cichlasoma rectangulare, Cichlasoma urophthalmum, Cichlasoma pearsei, Petenia splendida, Thorichthys meeki, Thorichthys pasionis, Paraneetroplus fenestratus and Ictalurus furcatus (Salgado-Maldonado 1985); Cichlasoma sp., Cichlasoma urophthalmum, Petenia splendida and Thorichthys meeki (Osorio-Sarabia et al. 1987); Cichlasoma urophthalmum and Thorichthys helleri (Pineda-López 1994); Parachromis motaguensis, Thorichthys helleri, and Thorichthys pasionis (Vidal-Martínez et al. 2001); Paraneetroplus synspilus (Pérez-Ponce de León et al. 1996). Río San Pedro (17 ° 45 ’0’’N 91 ° 23 ’0’’W); Cichlasoma rectangulare, Cichlasoma urophthalmum, Cichlasoma pearsei, Petenia splendida, Thorichthys meeki, Thorichthys pasionis, Paraneetroplus fenestratus and Ictalurus furcatus (Salgado-Maldonado 1985); Petenia splendida (Salgado-Maldonado 2013). Rio Vicente Guerrero (18 ° 24 ’ 20 ’’N 92 ° 54 ’ 35 ’’W); Cichlasoma rectangulare, Cichlasoma urophthalmum, Cichlasoma pearsei, Petenia splendida, Thorichthys meeki, Thorichthys pasionis, Paraneetroplus fenestratus and Ictalurus furcatus (Salgado-Maldonado 1985); Cichlasoma urophthalmum, Parachromis fenestratus and Cichlasoma rectangulare (Salgado-Maldonado 2013). Río Usumacinta, Emiliano Zapata (17 ° 45 ’0’’N 91 ° 46 ’0’’W); Cichlasoma urophthalmum, Parachromis managuensis and Petenia splendida (Pineda-López et al. 1985). Río Usumacinta, El Corozal (17 ° 44 ’0’’N 91 ° 35 ’ 33 ’’W); Cichlasoma urophthalmum and Parachromis managuensis (Pineda-López 1994; Salgado-Maldonado et al. 1997). Aguada Santa Elena; Cichlasoma urophthalmum (Salgado-Maldonado et al. 1997). Pantanos de Centla (17 ° 57 ’0’’N 92 ° 6 ’0’’W); Cichlasoma urophthalmum (López-Jiménez 2001); Parachromis managuensis (Salgado-Maldonado et al. 2005 a; Salgado-Maldonado 2013); Petenia splendida (Salgado-Maldonado 2013). Lago el Manguito (18 ° 12 ’ 50 ’’N 92 ° 50 ’ 5 ’’W); Parachromis managuensis (Salgado-Maldonado et al. 2005 a). Lago el Pozo (18 °0’ 35 ’’N 92 ° 48 ’ 11 ’’W); Parachromis managuensis (Salgado-Maldonado et al. 2005 a); Thorichthys pasionis (Vidal- Martínez et al. 2001). Río Usumacinta, Balancán (17 ° 45 ’ 8 ’’N 91 ° 32 ’ 45 ’’W); Parachromis managuensis (Salgado- Maldonado et al. 2005 a). Camellones Chontales (17 ° 45 ’ 8 ’’N 92 ° 35 ’ 10 ’’W); Thorichthys pasionis (Vidal-Martínez 1995). VERACRUZ: Lago de Catemaco (18 ° 25 ’0’’N 95 ° 7 ’0’’W); Paraneetroplus fenestratus (Salgado- Maldonado 1978; Salgado-Maldonado et al. 1992; Jiménez-García 1993; Salgado-Maldonado et al. 2005 b; Martínez-Aquino et al. 2009; Pinacho-Pinacho et al. 2012). Arrollo San Juan Evangelista; Rocio octofasciata and Thorichthys ellioti (Salgado-Maldonado et al. 2005 b). Río Tecolutla (20 ° 26 ’0’’N 97 ° 10 ’0’’W); Gobiomorus dormitor (Páez-Rodríguez et al. 2002). Río la Antigua (19 ° 20 ’0’’N 96 ° 23 ’0’’W); Gobiomorus dormitor (Páez- Rodríguez et al. 2002). YUCATAN: Cenote Chen-há (20 ° 41 ’ 24 ’’N 89 ° 52 ’ 36 ’’W); Cichlasoma urophthalmum (Scholz et al. 1996). Ría Celestun (20 ° 45 ’0’’N 90 ° 15 ’0’’W); Cichlasoma urophthalmum (Salgado-Maldonado & Kennedy 1997; Salgado-Maldonado et al. 1997; Salgado-Maldonado 2013). Mitza (21 ° 26 ’ 36 ’’N 89 ° 41 ’ 50 ’’W); Cichlasoma urophthalmum (Vidal-Martínez 1995; Vidal-Martínez et al. 1998). Costa Rica: Quebrada Puercos (10 ° 51 ’0’’N 85 ° 34 ’0’’W); Amatitlania nigrofasciata (Martínez-Aquino et al. 2009). Lago Jalapa (10 ° 31 ’ 52 ’’N 84 ° 1 ’ 50 ’’W); Parachromis managuensis, Parachromis loisellei, Amphilophus longinamus, Heterotilapia multiespinosa and Archocentrus centrarchus (this study). Nicaragua: Loonku creek (11 ° 59 ’ 5 ’’N 83 ° 46 ’ 48 ’’W); Amphilophus alfari and Heterotilapia multiespinosa (Aguirre-Macedo et al. 2001). Puente Chino (12 °0’ 30 ’’N 83 ° 46 ’ 13 ’’W); Parachromis managuensis and Heterotilapia multiespinosa (Aguirre-Macedo et al. 2001). Caño Negro (12 °0’ 55 ’’N 84 ° 1 ’ 10 ’’W); Parachromis managuensis) (Aguirre-Macedo et al. 2001). Specimens deposited. CNHE (8592, 6757, 6755, 6756, 6767, 6754, 601, 603, 604, 606, 631, 632, 6783, 8593, 8594, 6758, 8595, 8404, 8398, 8397, 8391, 8396, 8395, 8394, 8392, 8390, 8389, 8388, 8387, 8386, 8385, 8384, 8383, 8382, 8370, 6783, 5623, 650, 652 - 57, 660). Note. This species was described from juvenile specimens in the Lago de Catemaco, Veracruz, Mexico from Paraneetroplus fenestratus (Salgado-Maldonado 1978), which was taxonomically incorrect, the same author four decades later described features, such as the size and shape of adult of male and female as well as the structure of the eggs (Salgado-Maldonado 2013).Published as part of Pinacho-Pinacho, Carlos Daniel, Sereno-Uribe, Ana L., León, Gerardo Pérez-Ponce De & García-Varela, Martín, 2015, Checklist of the species of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) in fishes and turtles in Middle-America, and their delimitation based on sequences of the 28 S rDNA, pp. 98-116 in Zootaxa 3985 (1) on pages 103-105, DOI: 10.11646/zootaxa.3985.1.5, http://zenodo.org/record/24107
Two new species of Gyrodactylus von Nordmann, 1832 parasitizing Cnesterodon decemmaculatus (Poeciliidae) from the southern limit of the family in the Neotropical region
No full textIn this study, we followed an integrative taxonomy approach to describe two new species of Gyrodactylus von Nordmann, 1832, and to identify specimens of G. breviradix Vega, Razzolini, Arbetman, and Viozzi, 2019, all three collected from ten spotted live-bearer Cnesterodon decemmaculatus (Jenyns, 1842), an endemic and widespread poeciliid from the Pampean region, which is the southernmost occurring species of the Poeciliidae in the Americas. Gyrodactylids were first characterized morphologically and mophometrically, and when possible, sequences of the Internal Transcribed Spacers (ITS1-5.8S-ITS2) and the cytochrome oxidase II (COII) were used to delimit species. Gyrodactylus breviradix, Gyrodactylus marplatensis n. sp., and Gyrodactylus pampeanus n. sp. were found on the fins and body surface of C. decemmaculatus in La Tapera Creek, Mar del Plata, Buenos Aires province, Argentina. A phylogenetic analysis combining newly generated sequences of one of the new species, G. marplatensis n. sp., and of G. breviradix, along with those available in GenBank for a further 36 species of Gyrodactylus, revealed that G. marplatensis n. sp. is a sister taxon of Gyrodactylus decemmaculati Vega, Razzolini, Arbetman, and Viozzi, 2019. Genetic distances for the ITS and COII gene were estimated among Gyrodactylus spp. and further supported the validity of the new species. Overall, morphometric and molecular data coincided in delimiting the new taxa, thus demonstrating the value of integrative taxonomy for the erection of new species of Gyrodactylus and species identification.Fil: Taglioretti, Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: García Vásquez, Adriana. Instituto de Ecología; MéxicoFil: Rossin, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Pinacho Pinacho, Carlos Daniel. Instituto de Ecología; MéxicoFil: Rubio Godoy, Miguel. Instituto de Ecología; MéxicoFil: Timi, Juan Tomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentin
