Ophiomusium scalare Lyman, 1878

Baker, Alan N., 2016, An illustrated catalogue of type specimens of the bathyal brittlestar genera Ophiomusium Lyman and Ophiosphalma H. L. Clark (Echinodermata: Ophiuroidea), Zootaxa 4097 (1), pp. 1-40 : 20

Ophiomusium scalare Lyman, 1878 .

Figures 32 a, b

Ophiomusium scalare Lyman, 1878 ; Stöhr, 2011.

Holotype BMNH 82.12.23.434, Challenger station 171, Kermadec Is, 1097m; 7 specimens ZSI 5110 off Port Blair, Andaman Is, 204m (identified by Koehler 1897).

Main Features: Disc of type 5 mm in diameter. Disc plates have thickened distal margins and those in the interradii protrude. Surface of disc and arm plates rough. Radial shields separated by two or three plates. Ventral surface resembles O. simplex , but the sutures are all accentuated. Two pairs of exposed tentacle pores, each with a scale. Two ventral arm plates, and small dorsal arm plates on proximal segments at least. Two, then three small arm spines.