3,452 research outputs found
FIGURE 3 in A new species of Nymphon Fabricius, 1794 (Pycnogonida: Nymphonidae) from northern Spain
No full textFIGURE 3. Nymphon tricuspidatum sp. nov. male holotype. Photograph of male femur with its three cement gland tubes.Published as part of Anna, Soler-Membrives, 2011, A new species of Nymphon Fabricius, 1794 (Pycnogonida: Nymphonidae) from northern Spain, pp. 31-36 in Zootaxa 2798 on page 34, DOI: 10.5281/zenodo.20605
Feeding ecology of Ammothella longipes (Arthropoda: Pycnogonida) in the Mediterranean Sea: A fatty acid biomarker approach
No full textPallenopsis patagonica Scarabino & Lucena & Munilla & Soler-Membrives & Ortega & Schwindt & López & María & Christoffersen 2019
No full textPallenopsis patagonica (Hoek, 1881) Distribution: Southeast Pacific, from 33°S to the Magellanic Region; Southwest Atlantic to ca. 37°15´S, including the Malvinas (Falkland) Islands and South Georgia Islands; Burdwood Bank; Antarctica (Ross Sea, Weddell Sea) (Weis et al. 2014). Uruguayan records: Hoek (1881, as Phoxichilidium patagonicum var. elegans): HMS Challenger, st. 320. Depth 1097 m. Remarks: Hoek (1881) describes his specimen from st. 320 as probably representing a more elongated individual due to the influence of depth. Child (1995b), analyzing a large amount of material from the Antarctic and Sub-Antarctic regions, observed that some specimens had more elongated appendages, while others had shorter ones (although he did not determine if the variation occurs in specific localities or is diffused along of region). More recently, Weis et al. (2014), using molecular and morphological data, evaluated the variations found in individuals of P. patagonica from the Antarctic and Subantarctic regions. They observed that P. patagonica represents a large species complex, with at least two clades, a Chilean clade (which they called P. yepayekae Weis, 2014) and a "Falkland" clade, maintained under P. patagonica. It was in this last clade that the individual analysed by Hoek (1881) (Pallenopsis patagonica sensu stricto) was positioned. Child (1995b) reported material he assigned to this species from the shelf and slope off Buenos Aires Province (Argentina) collected by the RV Islas Orcadas (37°24´S– 54°39´7W, 182–327 m depth).Published as part of Scarabino, Fabrizio, Lucena, Rudá Amorim, Munilla, Tomás, Soler-Membrives, Anna, Ortega, Leonardo, Schwindt, Evangelina, López, Guzmán, María, José & Christoffersen, Martin Lidsey, 2019, Pycnogonida (Arthropoda) from Uruguayan waters (Southwest Atlantic): annotated checklist and biogeographic considerations, pp. 185-200 in Zootaxa 4550 (2) on page 193, DOI: 10.11646/zootaxa.4550.2.2, http://zenodo.org/record/262524
Cilunculus acanthus Fry & Hegdpeth 1969
No full textCilunculus acanthus Fry & Hegdpeth, 1969 Distribution: Antarctica (Scotia Sea; Bouvet Islands; Bellingshausen Sea); off La Plata River (Uruguay) (Child 1994a, 1997; Munilla & Soler–Membrives 2009). Uruguayan records: Child (1982, 1997): RV Atlantis II, cruise 60, sts. 245 and 262, referred as 245A and 262A. Depth 2440–2707 m.Published as part of Scarabino, Fabrizio, Lucena, Rudá Amorim, Munilla, Tomás, Soler-Membrives, Anna, Ortega, Leonardo, Schwindt, Evangelina, López, Guzmán, María, José & Christoffersen, Martin Lidsey, 2019, Pycnogonida (Arthropoda) from Uruguayan waters (Southwest Atlantic): annotated checklist and biogeographic considerations, pp. 185-200 in Zootaxa 4550 (2) on page 188, DOI: 10.11646/zootaxa.4550.2.2, http://zenodo.org/record/262524
Pantopoda Gerstacker 1863
No full textOrder Pantopoda Gerstäcker, 1863 Suborder Eupantopodida Fry, 1978Published as part of Scarabino, Fabrizio, Lucena, Rudá Amorim, Munilla, Tomás, Soler-Membrives, Anna, Ortega, Leonardo, Schwindt, Evangelina, López, Guzmán, María, José & Christoffersen, Martin Lidsey, 2019, Pycnogonida (Arthropoda) from Uruguayan waters (Southwest Atlantic): annotated checklist and biogeographic considerations, pp. 185-200 in Zootaxa 4550 (2) on page 187, DOI: 10.11646/zootaxa.4550.2.2, http://zenodo.org/record/262524
Nymphon tricuspidatum Anna, 2011, n. sp.
No full textNymphon tricuspidatum n. sp. Material examined. Galician Atlantic waters: 1 male, holotype (registration number Pyc 124 DA), 2 males (2 ovigerous and 1 without eggs), 2 gravid females, 4 juveniles, 9 postlarvae, paratypes (Pyc 125 to 128 DA). EBS 600 -03 station. 596–610 m depth. 43 º 48.59 ’N, 8 º 51.45 ’W. Collected by an epibenthic sledge during the DIVA- ARTABRIA cruise. Sand and rock bottoms. 18 / 9 / 2003. Le Danois Bank (El Cachucho, Biscay Bay, NE Atlantic). 1 male without eggs and 1 juvenile, paratypes (Pyc 129 CA). 574 m depth. 44 º05.85’N, 4 º 51.08 ’W. Collected by suprabenthic sledge. Fine sand and mud bottoms. 17 / 10 / 2003. Description of holotype (ovigerous male, ex. Nº 4, DIVA-ARTABRIA cruise). Trunk slender and elongated in outline, glabrous and completely segmented. T- shaped cephalon. Lateral processes separated by equal or more than their own diameter; smooth, without tubercles or setae, slightly longer than broad. Abdomen directed obliquely upwards, bearing only 2 distal setae. Abdomen reaching to half of second coxa from fourth leg. Proboscis rather robust and short—somewhat shorter than scapus—inclined 45 º ventrally, 2 times longer than its diameter. Cylindrical, distally bluntly rounded, with a constriction near to the distal region. Ocular process high and tricuspidate (derivatio nominis), slightly forwardly inclined, situated at the posterior of cephalon, at level of ovigerous implantation. Eyes feebly pigmented, almost transparent. Long and robust cheliphores. Cheliphore implantation laterally with respect to frontal cephalon, forming an angle of 80 º with respect to the proboscis longitudinal edge. Chela slightly longer than scape. Chela fingers longer than palm. Immovable finger of the chela cutting edges bearing 21 major teeth (with a few short setules) and movable finger with 31 teeth. Between the major teeth there are 4–6 smaller denticles. The juvenile specimens have fewer teeth than adults. Palp 5 -articled; 2 nd article the longest, 3 rd and 5 th article about equal in length; distal article only slightly longer than fourth; breadth of two distal articles 0.1 mm, especially setose. Oviger 10 -articled; 5 th article the longest, slightly curved, with a distal apophysis bearing some setae; 4 th article straight, smooth, with a proximal lump. Articles 7–10 (strigilis) with 16 compound spines each with 2–3 pairs of denticles, distributed in the formula 5: 4: 3: 4. Distal claw armed with 6 slender, similar and curved teeth. Legs relatively slender, 5 times as long as trunk. Coxa 2 nearly three times as long as coxa 1 or coxa 3, which are similar in length. Femur slightly less setose than tibia. Setae short and long, the latter longer than the diameter of article. Tibia 1 slightly longer than femur, both straight. Tibia 2 the longest segment, feebly curved. Tarsus slightly shorter than propodus; both segments slender and with spinose ventral margin. Main claw half length of propodus; no auxiliary claws. Males have 2–3 cement gland tubes situated dorso-medially on femur, sparsely distributed, or in pairs close together. Coxa 2 of legs 3 and 4 with ventro-distal round genital process. Body and oviger of females similar to males, except lacking proximal lump of the fourth ovigeral article. Female gonopores located on the second coxae of the four pairs of legs. Remarks. The greenish holotype was bearing a ball with 8 eggs glued to the right oviger. Juveniles studied have a lower number of teeth on the movable and immovable fingers of the chela, and fewer strigilis denticles. Measurements of holotype (mm). Trunk length: 2.4; trunk width: 1.4; abdomen length: 0.6; Proboscis: length: 0.8; width: 0.4; Cheliphore: total length: 2.2; scape: 1.0; chela: 1.2; fingers: 0.9; palm: 0.3; Palp: total length: 2.1; art. 1: 0.1; art. 2: 0.8; art. 3: 0.5; art. 4: 0.3; art. 5: 0.5. Second leg: total length: 12.2; coxa 1: 0.3; coxa 2: 1.0; coxa 3: 0.3; femur: 2.5; tibia 1: 2.8; tibia 2: 3.3; tarsus: 0.7; propodus: 0.9; claw: 0.4. Oviger length: 3.7.Published as part of Anna, Soler-Membrives, 2011, A new species of Nymphon Fabricius, 1794 (Pycnogonida: Nymphonidae) from northern Spain, pp. 31-36 in Zootaxa 2798 on pages 31-34, DOI: 10.5281/zenodo.20605
Pycnogonida (Arthropoda) from Uruguayan waters (Southwest Atlantic): annotated checklist and biogeographic considerations
No full textScarabino, Fabrizio, Lucena, Rudá Amorim, Munilla, Tomás, Soler-Membrives, Anna, Ortega, Leonardo, Schwindt, Evangelina, López, Guzmán, María, José, Christoffersen, Martin Lidsey (2019): Pycnogonida (Arthropoda) from Uruguayan waters (Southwest Atlantic): annotated checklist and biogeographic considerations. Zootaxa 4550 (2): 185-200, DOI: 10.11646/zootaxa.4550.2.
FIGURE 1 in Pycnogonida (Arthropoda) from Uruguayan waters (Southwest Atlantic): annotated checklist and biogeographic considerations
No full textFIGURE 1. Uruguayan Economic Exclusive Zone (URY EEZ), indicating the position of the stations of HMS Challenger (circle), RV Atlantis II (triangle) and RV Ƒema (square).Published as part of Scarabino, Fabrizio, Lucena, Rudá Amorim, Munilla, Tomás, Soler-Membrives, Anna, Ortega, Leonardo, Schwindt, Evangelina, López, Guzmán, María, José & Christoffersen, Martin Lidsey, 2019, Pycnogonida (Arthropoda) from Uruguayan waters (Southwest Atlantic): annotated checklist and biogeographic considerations, pp. 185-200 in Zootaxa 4550 (2) on page 187, DOI: 10.11646/zootaxa.4550.2.2, http://zenodo.org/record/262524
Nymphon vacans Child 1997
No full textNymphon vacans Child, 1997 Distribution: Known only from off La Plata River (Uruguay). Uruguayan records: Child (1997): RV Atlantis II, cruise 60, st. 245, referred as 245A. Depth 2707 m.Published as part of Scarabino, Fabrizio, Lucena, Rudá Amorim, Munilla, Tomás, Soler-Membrives, Anna, Ortega, Leonardo, Schwindt, Evangelina, López, Guzmán, María, José & Christoffersen, Martin Lidsey, 2019, Pycnogonida (Arthropoda) from Uruguayan waters (Southwest Atlantic): annotated checklist and biogeographic considerations, pp. 185-200 in Zootaxa 4550 (2) on page 192, DOI: 10.11646/zootaxa.4550.2.2, http://zenodo.org/record/262524
Ascorhynchus cuculus Fry & Hegdpeth 1969
No full textAscorhynchus cuculus Fry & Hegdpeth, 1969 Distribution: Antarctica (Scotia Sea); off La Plata River (Uruguay) (Child 1982, 1994a). Uruguayan records: Child (1982, as A. cuculum): RV Atlantis II, cruise 60, sts 237 and 240). Depth 993– 2323 m.Published as part of Scarabino, Fabrizio, Lucena, Rudá Amorim, Munilla, Tomás, Soler-Membrives, Anna, Ortega, Leonardo, Schwindt, Evangelina, López, Guzmán, María, José & Christoffersen, Martin Lidsey, 2019, Pycnogonida (Arthropoda) from Uruguayan waters (Southwest Atlantic): annotated checklist and biogeographic considerations, pp. 185-200 in Zootaxa 4550 (2) on page 188, DOI: 10.11646/zootaxa.4550.2.2, http://zenodo.org/record/262524
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