Odontohenricia aurantia Clark & Jewett, 2010, sp. nov.

• Main Authors: Clark, Roger N., Jewett, Stephen C.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Echinodermata; Asteroidea; Spinulosida; Echinasteridae; Odontohenricia; Odontohenricia aurantia; Harper; Rat Islands; Semisopochnoi Island; Alaska; Aleutian Islands
• Online Access: https://zenodo.org/record/6197368; https://doi.org/10.5281/zenodo.6197368

Odontohenricia aurantia sp. nov. Figures 71–76 Henricia sanguinolenta (Muller), Fisher, 1910: 272, variety C (in part), non Asterias sanguinolenta O.F. Müller, 1776. Type locality: Alaska, Aleutian Islands, Rat Islands, Rat Island (51 º 49.594 N, 178 º 27.184 E), 13 m. (AKALE 07-A0031). Type material: Holotype, LACM 2008 -030.002 (Leg. R.N. Clark, 8 June, 2008; scuba 13 m); Paratype 1, USNM 1125116; Paratype 2, CASIZ 180537 (leg. S. Jewett & Shawn Harper, 1 July, 2007; scuba 14 m). Additional material: 1, USNM (not located), Semisopochnoi Island (Albatross St. # 4778) Fisher, 1911: 275, plate 65.2 (upper specimen); plate 66.5. Diagnosis: Very large, slender-rayed, R to 17 cm; disc relatively small, rays very long, slender, tapering. Abactinal plates small, forming a rather close reticulation and crowned with numerous short (to 0.8 mm) spinelets; marginal plates forming two prominent series; oral plates with a very large apical spine, bordered on each side on each side by a similar smaller spine about 3 / 4 as large. Color in life bright orange. Description: Very large, slender, R to 17 cm (Holotype 16.2 cm), r 2.7, R:r 6.2: 1 (Figs. 71 & 72); disc relatively small, rays long, slender, tapering. Abactinal plates (Fig. 73) small, rather close set, forming a fine, relatively tight meshed skeleton, crowned with 10–20 pointed, thorn-tipped spinelets about 0.5 mm long; papular areas slightly larger than plates, with one to two papulae; madreporite small, equidistant between anus and disc margin, beset with radiating rows of spinelets. Superomarginals much larger than abactinals; intermarginal small, a single series extend just past the base of the rays, inferomarginals marginals somewhat larger than superomarginals, about twice as high as wide; actinal intermediates in three series, the first as large as superomarginals, and extending about 1 / 2 to 2 / 3 of R, second series smaller, and extending just past the base of the rays, and the third does not extend to the edge of the disc; adambulacrals (Fig. 74) ...