Deep-water Thyasiridae (Mollusca: Bivalvia) from the Oman Margin, Arabian Sea, new species and examples of endemism and cosmopolitanism Author Oliver, P. Graham text Zootaxa 2015 3995 1 252 263 journal article 10.11646/zootaxa.3995.1.21 810c1097-eff4-4262-acd6-1f76d05f1f83 1175-5326 236857 1D5CD052-9754-493C-836D-6A69756747D9 “ Leptaxinus ” indusarium Oliver & Levin, 2006 Fig. 4 J Material. Eight specimens, Off Ras Madrakah, southern Oman , Discovery cruise 211 st. 12714#1, 19°10.74´N 58°20.33´E to 19°10.10´N 59°19.50´E , 919–967 m , collected P.G. Oliver, 28 October 1994 . NMW .Z. 1995.009.20. Description. This species is fully described in the original description and is accompanied by a full discussion on the generic affinities. An illustration is given here for completeness. Remarks. The generic placing of this species remains uncertain as there are no molecular data for other species of Leptaxinus . The type material was obtained from off the Indus Fan at 879 m with dissolved oxygen levels between 0.1 and 0.2ml l -1. The Oman data are similar in both depth and oxygen concentrations and confirms the original hypothesis that this species is restricted to hypoxic environments in the Arabian Sea.