dcsimg

Diagnosis

provided by World Register of Marine Species
Atelecrinidae with centrodorsal hollow and thin-walled, closely joined to basal ring or slightly separated interradially by narrow gap or slit; central cavity diameter =0.6 of basal diameter; adoral rim of centrodorsal with 5 hollow, interradial buttresses that open adorally as deep, ring-shaped pits. Cirrus sockets in 10 columns with moderately developed aborally-projecting lateral fulcral tubercles triangular in side view; cirri (when known) tapering to a point with no opposing spine. Externally visible portion of each basal flat or slightly arched, weakly swollen interradially if at all, with lateral portions parallel-sided or tapering, and ends contiguous midradially; sometimes reduced, triangular and separated midradially. Aboral surface of basals with featureless, central depression, and with adorally curved and distally expanded pair of interior projections. Radial cavity with delicate aboral calcareous deposit. Most proximal pinnule on IIbr15–16.

Reference

5. Allan, D. (2000) A photographic guide to birds of prey of Southern, Central and East Africa. Struik Publishers, Cape Town.

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cc-by-4.0
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WoRMS Editorial Board
contributor
Charles Messing [email]