An illustrated catalogue of type specimens of the bathyal brittlestar genera Ophiomusium Lyman and Ophiosphalma H. L. Clark (Echinodermata: Ophiuroidea) Author Baker, Alan N. text Zootaxa 2016 4097 1 1 40 journal article 10.11646/zootaxa.4097.1.1 1bdc9f90-79e0-4265-b8b7-9057618b36db 1175-5326 270988 CD767562-3A19-4F4C-914D-80C50AD0D250 Ophiosphalma elii (A. H. Clark, 1949) . Figures 49 a, b Ophiomusium elii Clark, 1949 Holotype USNM E7124, Albatross Station 4096, SE Coast of Maui Id, Hawaii, 497– 523 m . Main Features : Small ( 6 mm d.d) pentagonal disc, raised above, flat below. Covered with many thick imbricating scales. Radial shields small, separated and divergent. Upper and ventral arm plates present throughout arms. Ventral interradii with 7–8 plates and small pentagonal oral shields. Genital slits remote from oral shields. Oral papillae not separated. 3 pairs of exposed tentacle pores with 1 large scale. 4, occasionally 5 short stout arms spines, the lower 3 of which become single-hooked distally. This specimen is very similar to O . valdiviae Koehler.