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 breve ( H. L. Clark, 1939 ) . Figures 44 a, b Ophiomusium breve H. L. Clark, 1939 Holotype BMNH 1948 - - 26 -415, John Murray Expedition 1933-34 station 105 off Zanzibar , 238- 293 M., 1 paratype BMNH 1948-5- 26 -414 & 1 paratype MCZ 6094, station 105. Main Features : The holotype differs from Clark’s figure 58 in that it has 2 plates distal to the oral shield in 4 interradii, rather than 1. The marginal granules on the disc are distinct, and the surface is very granular. In the MCZ paratype , the arms are distinctly more granular than the disc. Three pairs of exposed tentacle pore, no scales.