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 More images | Distribution map | F TAN0803–33, TAN0803–17, TAN0803–19, TAN0803–22. Family - Ophiuridae. |
Description The disc is flat, 7 mm diameter. The radial shields are round, separated and parallel to one another, with 1 plates between them; 1–1.25 times long as wide, and length 0.18 times d.d. The dorsal surface is covered by plates, no spines/granules, with a visible diameter of 0.25–1 mm, overlapping, with distinct centrodorsdal plate or with single interradial marginal plate; primary plates visible. The ventral interradial surface is plated. The oral shields are exposed, pentagonal (square pentagonal with convex distal edge), longer than wide. 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 wider than long, with two, pointed or tapering apical papilla, as wide as long. Oral papillae are present along each jaw angle in a series, quadrangular. The oral tentacle pore is located inside the jaw, with distal oral papilla enlarged, and quadrangular. The specimen has five arms, unbranched, basally constricted, 3–4 times d.d. Dorsal arm plates, separated, without spines/granules; fan-shaped, and carinate, and 0.65–1 times long as wide. The second ventral arm plates are contiguous with the third plate, fan-shaped, notched or concave laterally, and 1.1–1.2 times long as wide. Ventral arm plates of the first free segments separated, fan-shaped or pentagonal, notched or concave laterally (or slightly concave lateral edges), and 0.85–1.1 times long as wide. Tentacle pores along the arm, with one scale (multiple on proximal pores), covering the pore, oval. There are 0 arm spines on the first ventral segment, 2–3 on the first free segments. The spines are erect, extending laterally or restriced to the ventral surface, subequal, and 0.5–1 times as long as one arm segment, blunt, cylindrical. Glassy rough shaft.
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" MUSEUMVICTORIA |