Metacyphocaris helgae Tattersall 1906
Creators
Description
Metacyphocaris helgae Tattersall, 1906
(Figs 3, 4)
Metacyphocaris Helgae Tattersall, 1906: 29, pl. 3 fig. 1, pl. 4. — Stephensen, 1912a: 88. — Stephensen, 1912b: 613. — Stephensen, 1913: 113. — Stephensen, 1915: 38. — Stephensen, 1923: 54. — Schellenberg, 1926b: 216, figs 26c, 27. — Schellenberg, 1927: 666, fig. 60. — Pirlot, 1929: 8. — Schellenberg, 1929: 196. — K.H. Barnard, 1932: 37, fig. 5. — Stephensen, 1932: 354. — Stephensen, 1933: 9. — Chevreux, 1935: 28. — Thorsteinson, 1941: 60, pl. 3 figs 31-38. — Shoemaker, 1945: 189. — J.L. Barnard, 1958: 95. — Birstein & Vinogradov, 1958: 222. — Birstein & Vinogradov, 1960: 171. — Gurjanova, 1962: 79, fig. 14. — Hurley, 1963: 22, fig. 3. — Birstein & Vinogradov, 1964: 156. — O'Riordan, 1969: 32. — Thurston & Allen, 1969: 361. — Vader, 1983: 140 (table 1). — Umezu, 1984: 128. — Austin, 1985: 601. — Costello et al., 1989: 32. — Barnard & Karaman, 1991: 502. — Palerud & Vader, 1991: 38. — Lopes et al., 1993: 209. — Thurston, 2001: 684 (table 2).
Type localities (for syntypes). 40 miles north by west of Eagle Island, County Mayo, Ireland, eastern North Atlantic Ocean, [approx. 54°30'N 11°30'W], 1152 m over 1189+ m; same locality, 1371 m over 1829+ m; west of Porcupine Bank, eastern North Atlantic Ocean, 53°07'N 15°06'W, 1371 m over 1573 m; 50 miles north by west of Eagle Island, County Mayo, Ireland, eastern North Atlantic Ocean, [approx. 54°30'N 11°30'W], 1097 m over 2195 m; same locality, 2113 m over 2195 m.
Material examined. 1 specimen, immature, 11.5 mm, MV J15797, south of Point Hicks, Victoria, Australia, 38°27.20'S 149°09.70'E, 8 m rectangular midwater trawl, 22 July 1986, M.F. Gomon et al., RV Franklin, stn SLOPE 24.
Distribution. Atlantic, Indian and Pacific Oceans, between 65°N and 40°S; to 4740 m depth (see remarks).
Remarks. Tattersall (1906: 30), in his original description of Metacyphocaris helgae, said it had no mandibular palp, only a "very small rounded tubercular appendage". We have examined a specimen from the syntype series and confirm this description. Tattersall used this character to separate Metacyphocaris from Paracyphocaris. K.H. Barnard (1932) reported material of M. helgae from the South Atlantic Ocean with a rudimentary 2-articulate mandibular palp. Shoemaker (1945) also reported material with a rudimentary 2-articulate mandibular palp from Bermuda in the western North Atlantic Ocean and Hurley (1963) reported material with a 1- articulate palp from the San Nicholas Basin, eastern Pacific Ocean. There are now 18 literature reports of M. helgae material, recording more than 100 specimens. Most are not illustrated or described so it is not possible to assess the variation in the mandibular palp or any other characters which might indicate separate species. The single specimen we record here has no mandibular palp and matches very well with Tattersall's type material.
The depth range cited above is very unlikely. According to Thurston (2010 in litt.) this is ‘the bottom depth under the 0–4990 m haul listed in Birstein & Vinogradov (1960). Virtually all Birstein & Vinogradov hauls were made with open nets and the depths quoted are metres of wire out. The same is true for most mid-water hauls, even those made in horizontal mode. I have unpublished data for M. helgae collected in the North Atlantic at 60N20W, 53N20W, 40N20W and 30N23W to depths of 2000 m or more. Based on an analysis of more than 200 specimens obtained using the opening/closing IOS RMT1+8 nets, the species occurs in all layers from 600–700 m down to 1250–1500 m. Single specimens were caught at 500–600 m and 1500–2000 m.’
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- MV , RV , SLOPE
- Event date
- 1986-07-22
- Family
- Cebocaridae
- Genus
- Metacyphocaris
- Kingdom
- Animalia
- Material sample ID
- SLOPE 24
- Order
- Amphipoda
- Phylum
- Arthropoda
- Scientific name authorship
- Tattersall
- Species
- helgae
- Taxon rank
- species
- Verbatim event date
- 1986-07-22
- Taxonomic concept label
- Metacyphocaris helgae Tattersall, 1906 sec. Lowry & Stoddart, 2011
References
- Tattersall, W. M. (1906) The marine fauna of the coast of Ireland. Part VIII. Pelagic Amphipoda of the Irish Atlantic slope. Department of Agriculture and Technical Instruction for Ireland, Fisheries Branch, Scientific Investigations, 1905 (4), 3 - 39, pls 1 - 5.
- Stephensen, K. (1912 a) Report on the Malacostraca collected by the " Tjalfe " - Expedition under the direction of cand. mag. Ad. S. Jensen, especially at W. Greenland. Videnskabelige Meddelelser fra Dansk Naturhistorisk Forening, 64, 57 - 134.
- Stephensen, K. (1912 b) Report on the Malacostraca Pycnogonida and some Entomostraca collected by the Danmark Expedition to north-east Greenland. Meddelelser om Gronland, 45, 501 - 630, pls 39 - 43.
- Stephensen, K. (1913) Gronlands Krebsdyr og Pycnogonider (Conspectus Crustaceorum et Pycnogonidorum Groenlandiae). Meddelelser om Gronland, 22, 1 - 479.
- Stephensen, K. (1915) Isopoda, Tanaidacea, Cumacea, Amphipoda (excl. Hyperiidea). Report on the Danish Oceanographical Expeditions 1908 - 10 to the Mediterranean and Adjacent Seas, 2, Biology (D 1), 1 - 53.
- Stephensen, K. (1923) Crustacea Malacostraca, V: (Amphipoda, I). Danish Ingolf-Expedition, 3 (8), 1 - 100.
- Schellenberg, A. (1926 b) Amphipoda 3: Die Gammariden der Deutschen Tiefsee-Expedition. Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf dem Dampfer " Valdivia " 1898 - 1899, 23 (5), 193 - 243, pl. 5.
- Schellenberg, A. (1927) Amphipoda des nordischen Plankton. Nordisches Plankton, 6, 589 - 722.
- Pirlot, J. M. (1929) Les amphipodes gammarides recueillis dans l'Atlantique au cours de la croisiere oceanographique de l' " Armauer Hansen " Mai-Juin 1922. Memoires de la Societe Royale des Sciences de Liege, Series 3, 15 (2), 1 - 18.
- Schellenberg, A. (1929) Die abyssale und pelagische Gammariden. Bulletin of the Museum of Comparative Zoology, 69 (9), 191 - 201, pl. 1.
- Barnard, K. H. (1932) Amphipoda. Discovery Reports, 5, 1 - 326, pl. 1.
- Stephensen, K. (1932) The Tanaidacea and Amphipoda of the Arctic. Fauna Arctica, 6, 343 - 378.
- Stephensen, K. (1933) The Godthaab Expedition 1928. Amphipoda. Meddelelser om Gronland, 79 (7), 1 - 88.
- Chevreux, E. (1935) Amphipodes provenant des campagnes du Prince Albert Ier de Monaco. Resultats des Campagnes Scientifiques Accomplies sur son Yacht par Albert Ier Prince Souverain de Monaco, 90, 1 - 214, pls 1 - 16.
- Thorsteinson, E. D. (1941) New or noteworthy amphipods from the North Pacific coast. University of Washington Publications in Oceanography, 4 (2), 50 - 94.
- Shoemaker, C. R. (1945) The Amphipoda of the Bermuda Oceanographic Expeditions (1929 - 1931. Zoologica, Scientific Contributions of the New York Zoological Society, 30 (4), 185 - 266.
- Barnard, J. L. (1958) Index to the families, genera, and species of the gammaridean Amphipoda (Crustacea). Allan Hancock Foundation Publications, Occasional Paper 19, 1 - 145.
- Birstein, J. A. & Vinogradov, M. E. (1958) [Pelagic gammarids (Amphipoda, Gammaridea) from the northwestern part of the Pacific Ocean]. Akademiya Nauk SSSR, Trudy Instituta Okeanologii, 27, 219 - 257.
- Birstein, J. A. & Vinogradov, M. E. (1960) [Pelagic gammarids from the tropical Pacific Ocean]. Akademiya Nauk SSSR, Trudy Instituta Okeanologii, 34, 165 - 241.
- Gurjanova, E. F. (1962) [Amphipods of the northern part of the Pacific Ocean (Amphipoda-Gammaridea). Part 1]. Akademiya Nauk SSSR, Opredeliteli po Faune SSSR, 74, 1 - 440.
- Hurley, D. E. (1963) Amphipoda of the family Lysianassidae from the west coast of North and Central America. Allan Hancock Foundation Publications, Occasional Paper, 25, 1 - 160.
- Birstein, J. A. & Vinogradov, M. E. (1964) [Pelagic gammarid amphipods of the northern part of the Indian Ocean]. Akademiya Nauk SSSR, Trudy Instituta Okeanologii, 65, 152 - 195.
- O'Riordan, C. E. (1969) A Catalogue of the Collection of Irish Marine Crustacea in the National Museum of Ireland. Stationery Office, Dublin, 98 pp.
- Thurston, M. H. & Allen, E. (1969) Type material of the families Lysianassidae, Stegocephalidae, Ampeliscidae and Haustoriidae (Crustacea: Amphipoda) in the collections of the British Museum (Natural History). Bulletin of the British Museum (Natural History), Series Zoology, 17, 347 - 388.
- Vader, W. (1983) Prehensile pereopods in gammaridean Amphipoda. Sarsia, 68, 139 - 148.
- Umezu, T. (1984) Deep-sea biomass in North Pacific Polar Frontal Zone 40 ° N- 150 ° E: collected by KOC-net from 150 - 4500 m depth in May 1981. Bulletin of the Tokai Regional Fisheries Research Laboratory, 113, 115 - 139.
- Austin, W. C. (1985) An Annotated Checklist of Marine Invertebrates in the Cold Temperate Northeast Pacific. Khoyatan Marine Laboratory, Cowichan, B. C. 682 pp.
- Costello, M. J., Holmes, J. M. C. McGrath, D. & Myers, A. A. (1989) A review and catalogue of the Amphipoda (Crustacea) in Ireland. Irish Fisheries Investigations, Series B, Marine, 33 (1989), 1 - 70.
- Barnard, J. L. & Karaman, G. S. (1991) The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Records of the Australian Museum, Supplement, 13 (1 & 2), 1 - 866.
- Palerud, R. & Vader, W. (1991) Marine Amphipoda Gammaridea in north-east Atlantic and Norwegian Arctic. Tromura, Naturvitenskap, 68, 1 - 97.
- Lopes, M. F. R., Marques, J. C. & Bellan-Santini, D. (1993) The benthic amphipod fauna of the Azores (Portugal): an up-to-date annotated list of species, and some biogeographic considerations. Crustaceana, 65 (2), 204 - 217.
- Thurston, M. H. (2001) Pelagic amphipods. Polskie Archiwum Hydrobiologii, 47 (3 - 4), 682 - 694.