Home -> Species index -> Species description


More images   |   Distribution map


Ophiactis profundi

F 110558.

Family - Ophiactidae.



Description

The disc is flat, 2 mm diameter. The radial shields are triangular with rounded corners, separated and parallel to one another, with 1–2 plates between them; 1.5–2.5 times long as wide, and length 0.24 times d.d. The dorsal surface is covered by plates, no spines/granules, with a visible diameter of 0.1–0.25 mm, overlapping; primary plates visible.

The ventral interradial surface is plated. The oral shields are exposed, circular or fan shaped or diamond, wider than long. The adoral shields are exposed, extending to lateral edge of oral shield, separated radially, meeting interradially. Bursal slits extend from the oral shield to the disc margin, not bordered by spines or papillae. The jaw is as wide as long, with one, rounded apical papilla (rippled distal edge), wider than long. Oral papillae absent or separated by a gap from apical papillae. The oral tentacle pore is located inside the jaw (out), with distal oral papilla similar to other oral papillae.

The specimen has six arms of equal length, unbranched, moniliform, 3–5 times d.d.

Description exported from Delta key and to be finalised when DNA sampling completed. Note species description and image characters may vary slightly in animals of different size within the same species.

Cite this publication as: "T O'Hara (2010). ‘Ophiuroids from deep sea southern Australia. Museum Victoria. Version: 1.0 http://www.museumvictoria.com.au/stars"
Information updated 5 February 2010

MUSEUMVICTORIA