Halirages qvadridentatus G. O. Sars 1877

• Main Author: D'Acoz, Cédric D'Udekem
• Format: Text
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Calliopiidae; Halirages; Halirages qvadridentatus; Arctic; Arctic Ocean; Svalbard; Barents Sea; Norwegian Sea; Kara Sea; Baffin Bay; Greenland; Norway; North Pole; Jan Mayen; Tromso; Bear Island; Gronland; Sedov; Krylova; Sneli; Arctique*; Baffin; Icebreaker; Iceland; laptev; North Atlantic; Northern Sea Route; Polish Polar Research; Subarctic; Thule; Spitsbergen
• Online Access: https://dx.doi.org/10.5281/zenodo.3858773; https://zenodo.org/record/3858773

Halirages qvadridentatus G.O. Sars, 1877 Figs 8-9 Halirages qvadridentatus G.O. Sars, 1877: 257. Halirages elegans Norman, 1882: 688. Halirages qvadridentatus – G.O. Sars 1885: 172, pl. 14 fig. 4. — d'Udekem d'Acoz 2010: 146 (discussion on spelling). Halirages quadrispinosus – G.O. Sars 1893: 436 ( lapsus calami ). Acanthozone quadridentata – Della Valle 1893: 611 ( pro parte ), pl. 59 fig. 22. Halirages quadridentatus – Stebbing 1906: 290, 292. — Stephensen 1931: 268-272, fig. 76; 1933: 32 (variations); 1938: 237, 240. — Gurjanova 1946: 288 (discussion); 1951: 606, 608, fig. 411 (after G.O. Sars 1885). — Yashnov 1948: 641, pl. 78 fig. 8 (after Stephensen 1931). — Kamenskaya 1980: 248 (discussion). ? Halirages spez. – Schellenberg 1925: 205. Type material (syntypes) of Halirages elegans Norman, 1882 FAEROE ISLANDS: RV Knight Errant , stn 8, 60°04'N 007°37'W, 305 fathoms [= 558 metres], mud, 27 Jul.1880: 3 specimens (none with oostegites) (specimens of lengths 30, 25 and 19 mm), BM (NH) 17375- 377; RV Knight Errant , stn 8: 1 mandible, in very poor condition BM (NH), slide 1911.11.8.1268; Faeroe Islands, RV Knight Errant , stn 8: anterior part of head, right Gn1, right Gn2, left P7, left Ep3, left U3, 2 telsons, BM (NH), slide 1911.11.8.1269; RV Knight Errant , 1880, stn 8, label of slides indicating "main organs (mandible from three specimens)": 3 mandibles, 1 upper lip, 1 maxilliped, in poor condition, BM (NH), slide 1911.11.8.1270. Description HEAD. (Fig. 8A) Rostrum feeble; anterior lobe of head very bluntly subquadrate, posteriorly followed by distinct sinus; ventral lobe of head acute, pointing forward, not denticulate. ANTENNAE. (Fig. 8A) Typical for the genus Halirages article 1 of peduncle with 2 normally developed ventrolateral distal teeth. MOUTHPARTS. Typical for the genus but not described for the poor quality of the dissected material. GNATHOPOD 1. (Fig. 8 B-D) Coxa with anteroventral corner produced into a small tooth pointing forwards, with 18-20 small serrations along ventral margin; carpus 4.4 x as long as wide, as long as basis, anterior border not setose; propodus 2.4 x as long as wide, 0.66 x as long as carpus; palmar part of propodus 0.23 x as long as propodus. GNATHOPOD 2. (Fig. 8B, E) Coxa rectangular, with about 16 crenulations along ventral margin; carpus 4.8 x as long as wide, as long as basis, with anterior border not setose; propodus 2.5 x as long as wide, 0.59 x as long as carpus; palmar part of propodus 0.23 x as long as propodus. PEREIOPOD 3. Damaged, not suitable for description. PEREIOPOD 4. (Figs 8B, 9A) Coxa broad and posteriorly produced, with about 15 crenulations along ventral margin; leg weakly spinose/setose; carpus 7.5 x as long as wide, 1.6 x as long as merus; propodus 11.4 x as long as wide, 1.6 x as long as merus. PEREIOPOD 5. (Fig. 8 A-B) Pereiopod 5 <pereiopod 6 <pereiopod 7; posterior lobe of coxa distinctly longer than anterior lobe; leg weakly spinose/setose; basis elliptic, anterior border distally without tooth, posterior border with about 17 low crenulations, posterodistal border rounded and smooth; ischium without anterodistal tooth. PEREIOPOD 6. (Figs 8 A-B, 9B) Posterior lobe of coxa considerably longer than anterior lobe; leg weakly spinose/setose; basis anteriorly convex and posteriorly straight, converging towards tip, 1.3 x as long as wide, anterior border distally without tooth, posterior border with more than 23 low crenulations, posterodistal border rounded and smooth; ischium without anterodistal tooth; carpus 9.5 x as long as wide, 1.4 x as long as merus; propodus 13 x as long as wide, 1.2 x as long as merus. PEREIOPOD 7. (Figs 8 A-B, 9C-D) Coxa small and elliptic; leg weakly spinose/setose; basis with anterior and posterior border straight and converging towards tip, 1.3 x as long as wide, anterior border with 6 slender spines and no setae, distally without tooth, posterior border with 22-37 serrations, posterodistal border with 3-5 serrations; junction between posterior and posterodistal border sharply angular; ischium without anterodistal tooth; carpus 8.8 x as long as wide, 1.4 x as long as merus; propodus 13 x as long as wide, 1.6 x as long as merus. DORSAL ORNAMENTATION. (Fig. 8A) Pereionite 7 (2 smaller syntypes) or pereionites 6-7 (largest syntype), and pleonites 1-2 with strong posterodorsal tooth. EPIMERON 1. (Fig. 8A) With 5 isolate margino-facial spines, with well-developed posteroventral tooth, with posterior border rounded and smooth. EPIMERON 2. (Fig. 8A) With 5 isolate margino-facial spines, with weak but acute posteroventral tooth, with posterior border sigmoid and smooth. EPIMERON 3. (Fig. 8A, F) With a few isolate margino-facial spines, with weak but acute posteroventral tooth, with posterior border weakly rounded and weakly serrate. UROPODS 1-2. Adequate description impossible without destructive dissection. UROPOD 3. (Figs 8A, 9E) Peduncle with 4 distal dorsal spines, with dorsomedial border spinose; rami with irregularly sized (mostly slender and small) spines; outer ramus 0.88 x as long as inner ramus; inner ramus 1.8 x as long as peduncle, without medio-proximal bulging. TELSON. (Fig. 9 F-G) Triangular, with border convex, distally produced into 3 teeth of which the median one is by far the longest, without setules. BODY LENGTH. The largest syntype of H. elegans is 30 mm long. Distribution Baffin Bay, Eastern Iceland, Southeast of Faeroe Islands, Southeast of Jan Mayen (Stephensen 1938), Western Greenland (Stephensen 1933), Northwestern Greenland (Just 1980), Northeastern Greenland (Piepenburg 1988; Brandt 1997), Eastern Greenland (Stephensen 1913; Brandt 1997), Håkon Mosby mud volcano, Norwegian Sea, c. 1250 m (Gebruk et al. 2003), Northern and Western Svalbard (Gulliksen et al. 1999); 640-1435 m (Stephensen 1938), off Eastern Greenland at less than 425 m (Brandt 1997); Kara Sea (Gurjanova 1936: 152), Barents, Kara and Laptev Seas, Central polar Basin (Sirenko 2001). The much deeper records (2700 and 3200 m) from 'Svenska Djupet' by Oldevig (1959) require confirmation and the specimens of that author could actually be H. cainae sp. nov. Similarly, the very shallow records (8 to 500 m) in the Barents Sea by Bryazgin (1997) are considered as suspect. Weisshappel (2001) found H. qvadridentatus in Iceland in the Arctic Bottom Water Mass between -0.5°C and -0.6°C and Stephensen (1931) found it at temperatures between +0.8°C and -1.0°C. Remarks The original description of H. elegans , based on specimens from the Faeroe Islands, was meager and devoid of illustrations (Norman 1882), so that it was impossible to figure out exactly what the species looked like and how it differed from congeners. Stappers (1911), reluctantly followed by Stephensen (1931), applied the name H. elegans to a species very distinct from H. qvadridentatus and in many respects closer to H. fulvocinctus . Examination of the type material of H. elegans demonstrated that it consisted of specimens of H. qvadridentatus , confirming the assumptions of Della Valle (1893) and Stebbing (1906). A description and figures of these type specimens are given herein to demonstrate their synonymy and a new name is proposed for the species described in Stappers (1911) and Stephensen (1931) in the next section. Norman (1882: 688) indicated that his specimens came from station 8 of the Knight Errant Expedition, 540 fathoms [= 988 metres]. The real depth of station 8 was 305 fathoms [= 558 metres] (Norman 1882: 650), and it is station 6, which was 540 fathoms [= 988 metres] deep. : Published as part of D'Acoz, Cédric D'Udekem, 2012, On the genus Halirages (Crustacea, Amphipoda), with the description of two new species from Scandinavia and Arctic Europe, pp. 1-32 in European Journal of Taxonomy 7 on pages 16-20, DOI: 10.5852/ejt.2012.7, http://zenodo.org/record/3857937 : {"references": ["Sars G. O. 1877. Prodromus descriptionis crustaceorum et pycnogonidarum, qvae in expeditione Norvegica anno 1876, observavit. Archiv for Mathematik og Naturvidenskab 2: 337 - 271 [sic.] [= 237 - 271].", "Norman A. M. 1882. Report on the Crustacea. In: Exploration of the Faroe Channel during the summer of 1880, in H. M. ' s hired ship \" Knight Errant \". Proceedings of the Royal Society of Edinburg 11: 683 - 690.", "Sars G. O. 1885. The Norwegian North Atlantic Expedition 1876 - 1878. Sixth Volume. Zoology. Crustacea. Grondahl and sons, Christiana.", "d'Udekem d'Acoz C. 2010. Contribution to the knowledge of European Liljeborgiidae (Crustacea, Amphipoda), with considerations on the family and its affinities. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique / Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenschappen, Biologie 80: 127 - 259.", "Della Valle A. 1893. Gammarini del Golfo di Napoli. Fauna und Flora des Golfes von Neapel und angrenzenden Meeres-Abschnitte 20.", "Stebbing T. R. R. 1906. Das Tierreich 21. I. Gammaridea. Amphipoda. Verlag von R. Friedlander und Sohn, Berlin.", "Stephensen K. 1931. Crustacea Malacostraca. VII. (Amphipoda. III). The Danish Ingolf-Expedition 3 (11): 179 - 290.", "Gurjanova E. F. 1946. New species of Isopoda and Amphipoda from the Arctic Ocean. Transactions of the Drifting Expedition of the Main Administration of the Northern Sea Route on the Icebreaker \" Sedov \", 1937 - 1940 3: 272 - 297 (in Russian).", "Yashnov V. A. 1948. Amphipoda. In: Gaevskaya N. S. (ed.), 1948. A key to the determination of the fauna and flora of the northern seas of USSR: 253 - 324; 626 - 648. Academy of Sciences of USSR, Moscow (in Russian).", "Kamenskaya O. E. 1980. Deep sea Amphipoda (Amphipoda, Gammaridea) collected from the drifting station ' North-Pole 22 ': In: Vinogradov M. E. & Melnikov I. A. (eds), Biology of the central Arctic Basins: 241 - 250 (in Russian). Nauk Moskva, Moscow.", "Schellenberg A. 1925. Die Gammariden Spitzbergens nebst einer Uebersicht der von Romer & Schaudinn 1898 im nordlichen Eismeer gesammelten Arten. Mitteilungen aus dem Zoologischen Museum in Berlin 11 (2): 195 - 231.", "Stephensen K. 1938. The Amphipoda of N. Norway and Spitsbergen with adjacent waters. TromsO Museum Skrifter 3 (2): 141 - 278.", "Stephensen K. 1933. The Godhaab expedition 1928. Amphipoda. Meddelelser om GrOnland 79 (7): 1 - 88.", "Just J. 1980. Amphipoda (Crustacea) of the Thule area, Northwest Greenland: Faunistics and Taxonomy. Greenland Bioscience 2: 1 - 61.", "Piepenburg D. 1988. Zur Zusammenstzung der Bodenfauna in der westlichen Fram-Strasse. Berichte zur Polarforschung 52: 1 - 118. http: // dx. doi. org / 10013 / epic. 10052. d 001", "Brandt A. 1997. Biodiversity of peracarid crustaceans (Malacostraca) from the shelf down to the deep Arctic Ocean. Biodiversity and Conservation 6 (11): 1533 - 1556. http: // dx. doi. org / 10.1023 / A: 10183 18604032", "Stephensen K. 1913. Gronlands krebsdyr og pycnogonider (conspectus crustaceorum et pycnogonidorum Groenlandiae). Meddelelser om GrOnland 22: 1 - 479.", "Gebruk A. V., Krylova E. M., Lein A. Y., Vinogradov G. M., Anderson E., Pimenov N. V., Cherkashev G. A. & Crane K. 2003. Methane seep community of the Hakon Mosby mud volcano (the Norwegian Sea): composition and trophic aspects. Sarsia 88 (6): 394 - 403. http: // dx. doi. org / 10.1080 / 00364820310003190", "Gulliksen B., Palerud R., Brattegard T. & Sneli J. (eds) 1999. Distribution of marine macro-benthic organisms at Svalbard (including Bear Island) and Jan Mayen. Directorate for Nature Management. Research Report for DN 1999 - 4.", "Gurjanova E. F. 1936. Beitrage zur Amphipodenfauna des Karischen Meeres. Zoologischer Anzeiger 116: 145 - 152.", "Sirenko B. I. 2001. List of species of free-living invertebrates of Eurasian Arctic Seas and adjacent deep waters. Exploration of the fauna of the seas 51 (59).", "Oldevig H. 1959. Arctic, subarctic and Scandinavian amphipods in the collections of the Swedish Natural History Museum in Stockholm. Goteborgs Kungliga Vetenskaps- och Vitterhets-Samhalles Handlingar, series 7, series B, 8 (2) / Meddelanden fran Gotteborgs Musei Zoologiska Avdeling 127.", "Bryazgin V. 1997. Diversity, distribution and ecology of benthic amphipods (Amphipoda, Gammaridea) in the Barents Sea sublittoral. Polish Polar Research 18 (2): 89 - 106.", "Weisshappel J. B. 2001. Distribution and diversity of the hyperbenthic amphipod family Calliopiidae in the different seas around the Greenland-Iceland-Faeroe-Ridge. Sarsia 86 (2): 143 - 151.", "Stappers L. 1911. Crustaces Malacostraces. In: Duc d'Orleans, Campagne arctique de 1907. Impr. scientifique Charles Bulens, Bruxelles."]}