Ophiosphalma armatum ( Koehler, 1922 )

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 : 26

Ophiosphalma armatum ( Koehler, 1922) .

Figures 41 a, b

Ophiomusium armatum Koehler, 1922 .

Lectotype USNM 0 0 40923 Albatross Station 5428 eastern Palawan, 2021m. Dr Marc Eleaume, Paris Museum, has recently informed me that a syntype of this species in in their collection: NMNH 10384, ex- Albatross Expedition.

Main Features: Disc diameter 11 mm. Glabrous surface. Dorsal arm plates throughout length of arms, diamond-shaped. 6 subequal arm spines. 3 pairs of exposed tentacle pores, each with 2 tentacle scales. Long genital slits extending to disc edge, and bordered each side by bead-like papillae. Lemon-shaped oral shield, 6 oral papillae.