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More images | Distribution map | F 80886,159749, 93085. Family - Ophiuridae. |
Description The disc is flat or tumid, 11 mm diameter. The radial shields are round or triangular with rounded corners, separated and parallel to one another, with 1 plates between them; 1.1–1.3 times long as wide, and length 0.17 times d.d. The dorsal surface is covered by plates, no spines/granules, with a visible diameter of 0.2–1.2 mm, overlapping or touching; primary plates visible. The ventral interradial surface is plated. The oral shields are exposed, circular (elongated oval pointed proximally), longer than wide. The adoral shields are exposed, proximal to lateral edge of oral shield or extending to lateral edge of oral shield, separated radially, meeting interradially. Bursal slits reduced, 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 rounded or quadrangular. The specimen has five arms, unbranched, moniliform or basally constricted, 2–4 times d.d. Dorsal arm plates, separated, without spines/granules; diamond or fan-shaped, and 0.9–1.1 times long as wide. The second ventral arm plates are contiguous with the third plate, fan-shaped, notched or concave laterally, and 0.75–0.85 times long as wide. Ventral arm plates of the first free segments contiguous, fan-shaped, and 0.6–0.85 times long as wide. Tentacle pores along the arm, with several scales as a ring of many scales around the pore, reducing in number, covering the pore, oval. There are 0 arm spines on the first ventral segment, 2 on the first free segments. The spines are adpressed to arm or erect, extending laterally, subequal, and 0.5–1.5 times as long as one arm segment, blunt, cylindrical.
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 |