Abstract
The five species with seven large carapace spines that were previously assigned to the genus Bathyconchoecia are re-classified in a new genus Septemoecia. Septemoecia longispinata (Ellis, 1987) (new combination) is designated as the type species. The previously unknown adult female of S. georgei (Kornicker & Rudjakov, 2004) (new combination) and adults of S. septemspinosa (Angel, 1970) (new combination) are described. Meristic and zoogeographical data are presented and a key to the species based on external carapace characters is provided.
References
Angel, M.V. (1968) Bioluminescence in planktonic halocyprid ostracods. Journal of the Marine Biological Association of the United Kingdom, 48, 255–257.
https://doi.org/10.1017/S0025315400032562Angel, M.V. (1970) Bathyconchoecia subrufa n. sp. and B. septemspinosa n. sp., two new halocyprids (Ostracoda, Myodocopida) from the tropical North Atlantic and the description of the larval development of B. subrufa. Crustaceana, 19 (2), 181–199.
https://doi.org/10.1163/156854070X00491Angel, M.V. (2012) Scottoecia – a new genus of halocyprid ostracod, with the description of Scottoecia arabica nov. sp. and the redescription of Bathyconchoecia darcythompsoni (Scott, 1909). Zootaxa, 3254, 32–54.
Angel, M.V. & Graves, C.D. (2013) Bathyconchoeciinae, a new subfamily of deep oceanic planktonic halocyprid Ostracod (Myodocopa, Ostracoda). Zootaxa, 3630 (2), 243–269.
https://doi.org/10.11646/zootaxa.3630.2.3Boxshall, G.A. (1998) Comparative limb morphology in major crustacean groups: the coxal-basis joint in post-mandibular limbs. In: Fortey, R.A. & Thomas, R.H. (Eds.), Arthropod Relationships. Systematics Association special volume. Series 55. Chapman and Hall, London, pp. 155–167.
https://doi.org/10.1007/978-94-011-4904-4_13Deevey, G.B. (1968) Bathyconchoecia, a new genus of pelagic ostracods (Myodocopa, Halocyprididae) with six new species from the deeper waters of the Gulf of Mexico. Proceedings of the Biological Society of Washington, 81, 539–570.
Ellis, C.J. (1987) Bathyconchoecia longispinata n. sp., a new species of halocyprid ostracod with seven carapace spines. Crustaceana, 53, 83–93.
https://doi.org/10.1163/156854087X00655Ellis, C.J. (1989) The vertical distribution of the halocyprid ostracod genus Bathyconchoecia at 31ºN 25ºW, including a description of a new species. Biological Journal of the Linnean Society, 36, 31–48.
https://doi.org/10.1111/j.1095-8312.1989.tb00480.xGeorge, J. (1971) On the occurrence of Bathyconchoecia deeveyae Kornicker (Ostracoda, Halocypridae) in the Indian Ocean. Crustaceana, 21 (2), 141–144.
https://doi.org/10.1163/156854071X00337Graves, C. & Angel, M.V. (2017) Bathymetric distribution of planktonic ostracods (Ostracoda; Crustacea) in the Gulf of Oman (Northwest Indian Ocean) in relation to the Oxygen Minimum Zone. International Journal of Marine Biological Research, 2 (1), 1–14.
https://doi.org/10.15226/24754706/2/1/00110Kornicker, L.S. (1969) Bathyconchoecia deeveyae, a highly ornamented new species of Ostracoda (Halocyprididae) from the Peru‑Chile Trench system. Proceedings of the Biological Society of Washington, 82, 403–408.
Kornicker, L.S. (1981) Range extension and supplementary description of Bathyconchoecia deeveyae (Ostracoda: Halocyprididae). Proceedings of the Biological Society of Washington, 94, 1237–1243.
Kornicker, L.S. & Angel, M.V. (1975) Morphology and ontogeny of Bathyconchoecia septemspinosa Angel, 1970 (Ostracoda: Halocyprididae). Smithsonian Contributions to Zoology, 195, 1–21.
https://doi.org/10.5479/si.00810282.195Kornicker, L.S. & Rudjakov, J.A. (2004) Two new species of seven-spined Bathyconchoecia from the North Atlantic and Indian Oceans (Crustacea: Ostracoda: Halocypridae). Proceedings of the Biological Society of Washington, 117 (3), 398–407.
Poulsen, E.M. (1969) Ostracoda-Myodocopa. Part IIIB. Halocypriformes-Thaumatocypridae and Halocypridae. Dana Report, 75, 1–100.
Wiebe, P.H., Bucklin, A., Madin, L., Angel, M.V., Sutton, T., Pagés, F., Hopcroft, R.R. & Lindsay, D. (2010) Deep-sea sampling on CMarZ cruises in the Atlantic Ocean—an Introduction. Deep-Sea Research II, 57, 2157–2166.
https://doi.org/10.1016/j.dsr2.2010.09.018