Circeaster marcelli Koehler, 1909

Mah, Christopher L., 2006, Phylogeny and biogeography of the deep-sea goniasterid Circeaster (Echinodermata, Asteroidea, Goniasteridae) including descriptions of six new species, Zoosystema 28 (4), pp. 917-954 : 935

Circeaster marcelli Koehler, 1909

Circeaster marcelli Koehler, 1909: 84 , pl. IV, figs 1, 2, pl. VI, fig. 1. — Clark 1993: 251.

MATERIAL EXAMINED. — No specimens available for examination.

DISTRIBUTION. — Recorded from 7°23’N, 75°44’E in the Indian Ocean. 1926 m (1053 fms).

DIAGNOSIS. — R/r = 2.67. Arm plates significantly larger than disk plates.Transition abrupt between abactinal disk and arm plates. Abactinal granules absent. Superomarginals not abutting at midline, arm plates continuous to terminal. Interradial arcs linear.Spinelets and granules with spiny tips cover superomarginal, inferomarginal plates, actinal surface. Seven to eight thick, blunt furrow spines. Prominent paddle-like toothed pedicellariae, separated from furrow spines. Granules identical to actinal surface present on remainder of adambulacral plate.

APOMORPHY LIST. — Nodes 14 to Circeaster marcelli : 1.4, abactinal accessories absent; 1.6, no size, accessories absent.

DESCRIPTION

See Koehler (1909; translation in English of the description is available from the author).