The Echinoid Directory

Contributed by Simon Coppard, October 2006

Coelopleurus (Keraiophorus) vittatus Koehler, 1927, p. 64

Diagnostic Features	The test is subcircular and has broad, straight edged, naked median interambulacral regions. These are light brown, with each median region having a lilac zizag line that starts from the genital plate and continues to the ambitus. These naked median regions have light coloured borders (colour unknown) that continue to just below the ambitus. The adradial regions are red, the same colour as the median regions of the ambulacra. Primary spines are straight and robust in appearance, being distinctly triangular in cross-section. The primary spines are unbanded and green, with some red areas distally. The spine's collar is smooth either side of the central dorsal ridge, with longitudinal ridges on the ventral surface. Secondary spines are pointed, tapering distally (not club-shaped). Ophicephalous pedicellariae have slightly constricted valves aborally, with distal and proximal regions of equal length. Oral ophicephalous pedicellariae have unconstricted valves.
Distribution	Recent , Andaman Islands.
Classification and/or Status	Arbacioida, Arbaciidae, Coelopleurus.
Remarks	This species has primarily been differentiated from other Recent Coelopleurus by its straight and robust primary spines. These are similar to those of C. (K.) interruptus, however, they slightly differ in colour being uniformly dull purplish-red in C. (K.) interruptus and green with some red areas distally in C. (K.) vittatus. Mortensen, T. 1934. New Echinoidea. (Preliminary Notice.) . Videnskabelige Meddelelser fra Danks naturhistorisk Forening i Kobenhavn 98: 161-167.