Description. Disc diameter 62 mm (Fig. 20 A, B). Disc. Dorsal disc slightly inflated, swollen in the center (Fig. 20 A, B). Radial shields elongated, tapered at proximal end, extending to center of disc (Fig. 20 C, D). Entire disc covered by skin with conical ossicles of various size (0.4 - 0.7 mm high) and widely separated and scattered (Fig. 20 C-E). Genital slits conspicuous, interradial margin covered by two rows of higher than wide conical ossicles (Fig. 20 F, G). Ventral disc almost naked, but micro-granular ossicles visible on oral region (Fig. 18 H). Oral area covered by smooth skin with few scattered small granular ossicles, exposing adoral and oral shield outlines (Fig. 20 H). Oral plates flat, polygonal, and slightly in contact with adoral shields (Fig. 20 H). Adoral shields short, square. Oral papillae and teeth spiniform (Fig. 20 H), several vertical rows of teeth on dental plate (possibly tooth papillae at ventral edge). Arms. Arms branched at least eight to nine times, flexible dorso-ventrally, flat ventrally, arched dorsally (Fig. 20 I-N). Ventral arm surface covered by smooth skin; proximal half with widely scattered small, flat, polygonal granular ossicles (Fig. 20 I-K). Dorsal arm surface covered by polygonal or domed plates and between these pedicellarial bands (Fig. 20 L-O) that appear after second arm fork, covering whole lateral to dorsal area of arm, creating annulated appearance (Fig. 20 L). First arm segment lacks spines, next four to six with two arm spines, thereafter two or three arm spines per segment (Fig. 20 I-K). Ventral arm spines similar in size, smaller, unevenly pointed, distally turning into hooks with 2 - 3 secondary teeth (Fig. 20 K, P, Q). Color. In live specimen, whole specimen brown, but radial shields, oral regions, and ventral arms lighter than disc (Fig. 20).
Sumber: Order Euryalida (Echinodermata, Ophiuroidea), new species and new records from the South China Sea and the Northwest Pacific seamounts