Description. Disc diameter 10 mm, length of arms 145 mm (Fig. 12). Disc. Disc flat, strongly raised above arms (Fig. 14 A, B). Disc covered by thin skin with fine, small, rounded granular ossicles, dense in center (seven or eight grains in 1 mm), but separated at distal edge (six or seven grains in 1 mm) (Fig. 14 C, D). Radial shields long, narrow, widely separated distally, convergent proximally, meeting in disc center (Fig. 14 C). Genital slits narrow, and vertical on ventral interradii (Fig. 14 E). Jaws elongated, covered with granular ossicles but near apex fewer granular ossicles (Fig. 14 E). Flattened, spearhead-shaped teeth and granular ossicles that resemble lateral oral papillae at apex of jaw (Fig. 14 E). Ventral disc covered with granular ossicles similar to dorsal disc (six or seven grains in 1 mm), slightly separated (Fig. 14 E). Adoral shields large, connected to first ventral arm segment, concealed by thin skin with granular ossicles, but plate outline visible (Fig. 14 E). Oral shields not discernible and adoral shield spine covered with ossicles (Fig. 14 E). Arms. Arms sub-cylindrical, not swollen, narrower and more cylindrical in distal half of arm (Fig. 14 F, G). Dorsal and lateral arm base covered with granular ossicles similar to disc (six or seven grains in 1 mm), on middle segments granular coverage similar to arm base (six or seven grains in 1 mm), and distally decreasing in size and widely separated (grains six or eight in 1 mm) (Fig. 14 F, G). On lateral arm plate, granular ossicles continue toward base of arm spine (Fig. 14 G, J). Ventral surface of arm base covered with granular ossicles similar to ventral disc but less dense (six or seven grains in 1 mm), widely separated and decreasing in size to naked at middle to distal end of arm (Fig. 14 H, I). First tentacle pore without arm spine (Fig. 14 E). First arm spine appears at second arm segment, second arm spine at fifteenth or nineteenth segment. Inner arm spine cylindrical, one arm segment in length, flattened, with blunt, thorny tip, slightly club-shaped (Fig. 14 J, K). Outer arm spine half as long as inner, with thorny tip (Fig. 14 K). Both arm spines equal in length at distal end of arm, and turning into compound hook with 3 - 5 secondary teeth (Fig. 14 L). Color. In ethanol, pink but when dried, dull brown to whitish (Fig. 14).
Sumber: Order Euryalida (Echinodermata, Ophiuroidea), new species and new records from the South China Sea and the Northwest Pacific seamounts