Abstract
We describe a new species, Moina diksamensis n. sp., endemic to Socotra Island, Yemen, including details of important limb characters not usually described in the literature. Moina diksamensis has a peculiar ecology and is found in close association with freshwater crabs of the genus Socotra Cumberlidge & Wranik, 2002. The new species is closely related to M. mukhamedievi Mirabdullaev, 1998 from Uzbekistan, another biogeographical link for freshwater crustaceans between this Afro-Arabian island and Asia.References
- Apel, M. & Brandis, D. (2000) A new species of freshwater crab (Crustacea: Brachyura: Potamidae) from Socotra Island and description of Socotrapotamon nov. gen. Fauna of Arabia, 18, 133–144. - Baribwegure, D. & Dumont, H.J. (2000) Some Freshwater Cyclopoids (Crustacea: Copepoda) of the Island of Soqotra (Indian Ocean), with the description of Three New Species. International Review of Hydrobiology, 85, 471–489. - Cheung, C. & DeVantier, L. (2006) Socotra: A natural history of the islands and their people. Science Editor: K. Van Damme. Odyssey Books and Guides, Airphoto International Ltd., Hong Kong, 408 pp. - Cumberlidge, N. & Wranik, W. (2002) A new genus and new species of freshwater crab (Potamoidea: Potamidae) from Socotra Island, Yemen. Journal of Natural History, 36, 51–64 - Dumont, H.J. & Silva-Briano, M. (2000) Karualona n. gen. (Anomopoda: Chydoridae), with a description of two new species, and a key to all known species. Hydrobiologia, 435, 61-–82. - Goulden, C.E. (1968) The systematics and evolution of the Moinidae. Transactions of the American Philosophical Society, 58, 1–101. - Holsinger, J.R. & Ruffo, S. (2002) Indoweckelia superstes n. gen. n. sp. from the subterranean waters of Socotra Island: the first weckeliid amphipod crustacean (Hadziidae) found in the Indo-West Pacific region. Bolletino del Museo Civico di Storia Naturale di Verona, 26, 27–36. - Hudec, I. (1987) Moina oryzae n.sp. (Cladocera, Moinidae) from Tamil Nadu (South India). Hydrobiologia, 145, 147–150. - Hudec, I. (1997) Moina ephemeralis n.sp. from Central Europe. Hydrobiologia, 360, 55–61. - Kotov, A.A., Elías-Gutiérrez, M. & Granados-Ramírez, J.G. (2005) Moina dumonti sp.nov. (Cladocera, Anomopoda, Moinidae) from Southern Mexico and Cuba, with comments on Moinid limbs. Crustaceana, 78(1), 41–57. - Mirabdullaev, I. (1998) Moina mukhamedievi n.sp. (Crustacea, Cladocera) from ricefields of Uzbekistan (central Asia). Hydrobiologia, 385, 11–16. - Mirabdullaev, I., Van Damme K. & Dumont H.J. (2002) Freshwater cyclopoids (Crustacea: Copepoda) from the Socotra Archipelago, Yemen, with description of a new species of Bryocyclops. Fauna of Arabia, 19, 261–271. - Sohlman, E. (2004) A Bid to Save the 'Galápagos of the Indian Ocean'. Science, 303(5665), 1753. - Sars, G.O. (1916) The Freshwater Entomostraka of Cape Province (Union of South Africa). Part I. Cladocera. Annals of the South African Museum, 15, 303–351. - Taiti, S. & Ferrara, F. (2004) The terrestrial Isopoda (Crustacea: Oniscidea) of the Socotra Archipelago. Fauna of Arabia, 20, 211–325. - Van Damme, K., Chiambeng, G., Maiphae S. & Dumont, H.J. (2003) New species in the rheophilous genus Nicsmirnovius Chiambeng & Dumont, 1999 (Branchiopoda: Anomopoda: Chydoridae) and reassignment of Alona eximia Kiser, 1948 and Alonella fitzpatricki Chien, 1970. Hydrobiologia, 499, 25–49. - Van Damme, K., Dumont, H.J. & Weekers, P.H.H. (2004) Anostraca (Crustacea: Branchiopoda) from Socotra Island (Yemen): A new Branchipodopsis and its relation to African and Asian congeners. Fauna of Arabia, 20, 193–209. 
