Description. Single specimen, body uniformly white (Fig. 41 A). Body almost cylindrical,> 2 x as long as wide (L = 16 cm; W = 6.9 cm), being of almost equal breadth throughout the whole length and tapering posteriorly; mouth anteroventral and anus posteroventral. Tentacles 20, small, with a lightly brown tip, each with a terminal part with 6 - 8 unbranched processes. Long, pointed processes, or different lengths, arranged in four distinct rows, two rows running along the dorsal ambulacra with eight processes on each row, and the longest being approx. half of the body length (Fig. 41 C); the other two rows placed on the sides of the body, slightly above the ventral lateral ambulacra. Ventral ambulacra with 11 and 13 tube feet, arranged in two irregular rows; odd ambulacrum naked, except for two tube feet arranged in the posterior half of the body, and ten surrounding the anus; processes crowded anteriorly (Fig. 41 D). Thin skin, translucent, but hard and brittle, with numerous small and large perforated plates, with the small ones bearing two or three spines near the centre, and the large ones ~ 30 spines; ossicles imbricated, almost forming a skeleton (Fig. 41 B).
Sumber: Benthic megafauna of the western Clarion-Clipperton Zone, Pacific Ocean