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First record of Kinnecaris (Copepoda: Harpacticoida: Parastenocarididae) from Turkey and Thailand: description of three new species and emended definition of the genus
No full textThree new species of hyporheic Parastenocarididae from Turkey and Thailand are described in this paper, based on their
morphological features. Kinnecaris xanthi sp. nov. and Kinnecaris draconis sp. nov. were collected in Anatolic Turkey,
respectively from one and two rivers; Kinnecaris iulianae sp. nov. was collected from several streams on Pha-Ngan Island
(Thailand). The two new species from Turkey both lack the typical pitted integument and their P5 fused with the intercoxal
sclerite in both sexes; they share a similar shape of the caudal rami in both sexes and of P4 in male. They differ in the
ornamentation of the genital double-somite and the armature of A1 in females; in the ornamentation of the anal operculum;
in the shape of P2 endopod of both sexes, and P3 endopod of females; in the ornamentation of the first exopodal segment of
P3 in males, and in the armature of P4 endopod in females. Kinnecaris iulianae sp. nov. shares with the other species from the
Oriental and Australian Region the presence of a pitted cuticle, the size and shape of caudal rami and the shape and
ornamentation of P3 in the males, and is characterized by the ventral ornamentation of the genital double-somite and
urosomites of the females, and by the lack of ornamentation at the insertion of the P4 endopod of both sexes. The
descriptions of these three new Kinnecaris widen the distribution of the genus which, so far, was considered Gondwanian.
In this paper, we also re-examine the diagnostic characters of the genus and their presence and/or variability in the known
species of Kinnecaris, discuss the taxonomic position of Kinnecaris lyncaea and emend the genus diagnosi
The genus Stammericaris Jakobi (Copepoda: Harpacticoida: Parastenocarididae) in the Nearctic subregion: description of Stammericaris remotaepatriae sp. nov., proposal of Stammericaris palmerae (Reid 1992) comb. nov., and remarks on other North American Parastenocarididae
No full textWe describe a new harpacticoid, Stammericaris remotaepatriae sp. nov., collected from the hyporheic habitat of a stream in Nantucket, MA, USA. The new species is characterized by the size of the caudal rami of both sexes, which are shorter than the anal somite, by the morphology and armature of the P3 and, mainly, by the P4 endopod of males, represented by a curved plate with a strongly bifid tip, the distal proximal outgrowth of the distal margin spiniform and denticled, the proximal outgrowth missing. The study of the new species allowed us to review the systematic position of Parastenocaris palmerae Reid, 1992, which we transferred to Stammericaris Jakobi, 1972 as Stammericaris palmerae (Reid, 1992) comb. nov., based mainly on the structure of the male P4 endopod complex and the setation of the caudal rami. We also discussed the taxonomic position and affinities of Parastenocaris trichelata Reid, 1955, suggesting that this species is related to the two former ones for a set of diagnostic features, but can not be attributed to the genus due to the peculiar morphology of the male P4 endopod complex; P. trichelata is therefore considered species inquirenda. We also discussed Parastenocaris sp. 1 and Parastenocaris sp. 3, two taxa only partially described and drawn in Strayer (1988). In fact, Parastenocaris sp. 1 can be related to Stammericaris and might represent a third species of the genus in the Nearctic region. Remarkably, the structure of the male P4 endopod of Parastenocaris sp. 3 is typical of Proserpinicaris Jakobi, 1972; this hypothetical assignment of the species to Proserpinicaris, if confirmed, would be of relevant taxonomic and biogeographic value. Finally, we provide an updated distribution map of the genus Stammericaris and brief remarks on the faunistic and ecological characteristics of the taxa presented and discussed in this paper
First record and a new taxon of Stammericaris Jakobi, 1972 (Copepoda, Harpacticoida) from the Philippines; with an amendment to the generic diagnosis and reassignment of three Palearctic species
Full text linkWe report on the finding of Stammericaris galichai sp. nov. in the hyporheic habitat of Cantingas River, Sibuyan Island, the Philippines. The new species is attributed to the genus based on the morphology of the male antennule (of the “pocket-knife” type); the presence of a hook on the inner margin of the basis of the male first pereopod; the male third pereopod with a long apophysis and two groups of outer spinules on the first exopodal segment; the endopodite of the male forth pereopod reduced, but corresponding to the basic morphology of the genus, and the basis ornamented with two spinules on inner margin, one of which long and inwardly-curved, one small and with apex consisting of three small lobes. Stammericaris galichai sp. nov. does not have one taxonomically and morphologically closest species within the genus, possibly due to its geographical isolation. Based on some aspects of the morphology of Stammericaris galichai sp. nov. (namely, the shape of the fifth pereopod) and other species of Stammericaris, the description of the genus is slightly amended, and the Palearctic taxa Parastenocaris balcanica Petkovski, 1959, P. nertensis Rouch, 1990, P. triphyda Cottarelli & Bruno, 1993 are transferred to the genus Stammericaris. Stammericaris galichai sp. nov. is the first representative of the genus for the Philippines, and for the entire Oriental Region. The faunistic and biogeographical relevance of the new species is discussed with particular focus on the discovery of this freshwater stygobitic species in a volcanic island which has never been in contact with other landmasses. A map of the distribution of Parastenocarididae hitherto known for the Philippines, including a new station in Mindoro for the endemic Parastenocaris distincta Cottarelli, Bruno & Berera, 2006, is also provide
FIGURE 2 in Proposal of Fiersiphontina gen. nov., redescription of Fiersiphontina sensillata comb. nov., and new data on the distribution of Spiniferaphonte (Copepoda, Harpacticoida, Laophontidae)
No full textFIGURE 2. Fiersiphontina sensillata (Wells & Rao, 1987) comb. nov. A, female: cephalothorax, dorsal view; B, female: first free thoracic somite, dorsal view; C, female: genital double somite, genital field, P6, ventral view; D, female: anal somite, anal operculum, caudal ramus, lateral view (setae numbered in Latin numerals, hook-like processes numbered in Arabic numerals); E, female: anal somite, anal operculum, caudal rami, dorsal view; F, female: rostrum; G, female: antennule, ventral view. Scale bars: 50 μm.Published as part of Bruno, Maria Cristina & Cottarelli, Vezio, 2011, Proposal of Fiersiphontina gen. nov., redescription of Fiersiphontina sensillata comb. nov., and new data on the distribution of Spiniferaphonte (Copepoda, Harpacticoida, Laophontidae), pp. 1-19 in Zootaxa 2809 on page 6, DOI: 10.5281/zenodo.27710
New Gynandromorph Records for Chirocephalus diaphanus (Branchiopoda, Anostraca, Chirocephalidae)
Full text linkWe report and describe new Chirocephalus diaphanus Prévost, 1803 gynandromorphs from Tunisia and review the literature of anostracan gynandromorphy and other, possibly associated, somatic aberrations, with comments on their evolutionary significance. Our material has three specimens that are specifi cally deformed on the left side of the head
Interesting interstitial Paramesochridae (Copepoda: Harpacticoida): Maliithipon wellsi gen. et sp. nov. from the Philippines, M. aberrans (Mielke, 1984) comb. nov. from Panama, and M. cf. aberrans (Mielke, 1984) from the Azores
No full textWe propose and describe a new genus of interstitial Paramesochridae, Maliithipon gen. nov., to accommodate three species. Maliithipon wellsi sp. nov., type species of the genus, is described based on specimens collected in two sandy beaches in Isla Verde, the Philippines. Apodopsyllus aberrans Mielke, 1984a described from Panama, is allocated to the herein erected genus as Maliithipon aberrans (Mielke, 1984a) comb. nov. Maliithipon cf. aberrans is described, based on specimens collected in the Azores and previously identified as Apodopsyllus aberrans. The new genus is characterized by several distinct morphological features: mandible with uniramous, 2-segmented palp and gnathobase with thin and pointed teeth; maxillule with reduced armature, lacking endopod and exopod; maxilla large, with three syncoxal endites and endopod with reduced setal number; P5 very reduced in both sexes; caudal rami with six setae, two of which (setae III and VI) transformed; pseudoperculum well-developed, with four-lobed distal margin. The new genus is included in the subfamily Paramesochrinae Lang, 1944 and in the genus-group Scottopsyllus (sensu Huys, 1987). It has strong affinities with Leptopsyllus (Leptopsyllus) platyspinosus Mielke, 1984b and Wellsopsyllus (Intermediopsyllus) smirnovi (Kunz, 1992), which are considered as species inquirendae in this paper. Some remarks on the ecology and geonemy of the three studied species are provided. We also list the accompanying Paramesochridae obtained from the two new collecting sites of the genus, and all the genera of Paramesochridae recorded from other sites in the Philippines during the same survey
Variazioni sul tema II: Description of Carcinocaris Dussarti sp. nov. associated with xanthid crabs and new data on the distribution of Carcinocaris serrichelata (Copepoda, Harpaticoida)
No full textA new species of the laophontid genus Carcinocaris, C. dussarti sp. nov. is described. The specimens were collected from the carapax of xanthid decapod crabs gathered in the intertidal zone along the coast of Samed Island, Thailand. This is the third species for the genus; it is most similar to C. serrichelata, from which it can be distinguished by the maxillipedal claw
of both sexes with three strong teeth, the caudal rami with seven setae, the two-segmented P4 exopodite of the males, the rectangular P5 exopodite of females, and the reduced P6 setation of the females. The differences from C. minipedia are represented by the ornamentation of the
body surface and maxillipedal claw, the armature of the caudal rami, the structure and armature of P2 of both sexes, the segmentation of the P4 exopodite of the females, and the male P5 with a single seta. Notes on additional records of C. serrichelata, previously known from the type
locality only, are provided
Studies on subterranean copepods from Italy, with descriptions of two new epikarstic species from a cave in Sicily
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Endemism, allopatry and passive transport: the case of two Proserpinicaris (Crustacea, Copepoda, Harpacticoida) from Sardinia
Full text linkProserpinicaris is a genus of Parastenocarididaewith wide geonemy,it includes specialized
taxaliving exclusively in phreatic and interstitial continental groundwater. The only speciesknown
for Italy are:P. proserpina (Chappuis 1938) from Southern and Central Italy,P. amalasuntae (Bruno
and Cottarelli 1988) from Latium and Tuscany in Central Italy, P.kalypso (Pesce et al., 1988) from
Sicily. In Sardinia,P.admète (Cottarelli et al., 1980) was collected from the hyporheic habitat of
several streams in the island, and P.ima (Cottarelli 1989) from phreatic waters in the island of La
Maddalena; a third species was collected in the Asinara island from the hyporheos at the estuary of
the creek "BaddeLonga".This Proserpinicaris is new for Science and its complex of morphological
characters highlight its remarkable affinity with P. admète.The Asinarawas the terminal portion of
the Stintino Peninsula, separating from the mainland at the end of the Würm, when melting of the
ice caps caused the rise of the sea level (Flandrian or Versiliantransgression).These geological
phenomena are recent (the transgression peak occurred about 6500 years ago), but the time span
seems to have been sufficient to allow the ancestor populations to undergo allopatricspeciation,
resulting in the two strongly relatedspeciesResearch on species of Italian Parastenocarididaeat the
molecular levelis currently in progress andone species of Proserpinicaris was already sequenced
andmore molecular data will allow to clarify the framework outlined here.Although this speciation
scenario seems very likely, other hypothesis such as passive anthropic dispersion can not be ruled
out. In fact, Parastenocarididaedo not tolerate marine waters and are strongly linked to narrow
environmental conditions. Laboratory experiments in progress at the University of Catania show
that these harpacticoids can survive for several months, in small sealed containers with a small
amount of water and without food or oxygen input.A possible transport through wet sands or
containers containing water could explain the presence of a Proserpinicarisin Asinara, and of
otherParastenocarididae in oceanic islands (Schabetsberger, 2009). Moreover, a
newParastenocarididae was collected inSablayan, a volcanic island of the Philippines which
hasnever been in contact with other mainland (Cottarelli, pers.com)
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