Histampica duplicata

<p>This species is recorded from the eastern Pacific coast of Panama (see Maluf, 1988).</p>

Sumber: The echinoderms of Panama

Description (ICML-EMU- 12996). DD = 5.4 mm. Disc slightly incised interradially. Dorsal disc covered by imbricated, depressed scales, no disc spines. Central primary plate round, surrounded by oval primary plates. RS scalene triangular, separated by three large scales (Fig. 18 A). Ventral interradii covered by imbricated scales smaller than dorsal scales (Fig. 18 B). OSh broader than long, spearhead-shaped with pronounced distal lobe. Madreporite slightly larger than OSh. AdSh trapezoidal, meeting in front of OSh. Jaws bearing four oral papillae at each side; AdShSp rounded; 2 AdShSp quadrangular; BSc pointed; IPa pointed. vT quadrangular-rounded (Fig. 18 C). Arms slender. DAP broader than long, triangular, twice as wide as long, distal edge convex, separated (Fig. 18 D). VAP broader than long, pentagonal, separated. LAP with up to three ArSp, small (approximately one arm segment in length), blunt tip, dorsalmost the longest, ventralmost the shortest. Tentacle pores with two oval TSc (Fig. 18 E). Color pattern dorsally and ventrally beige-whitish (ethanol preservation) (Fig. 18 A ‒ F). Habitat and distribution. The material examined is from western Baja California Sur, the Gulf of California, and off Colima and Guerrero; 325 ‒ 1,940 m depth, mostly on muddy bottom.

Sumber: Deep-sea Ophiuroidea (Echinodermata) collected during the TALUD cruises in western Mexico