﻿MARSHALL ISLANDS ECHINODERMS — CLARK 283 



and 17 mm. high. The seven specimens from Euiwetok are small, 

 about 17 nmi. long, and are very variable in shape. 



Genus BRISSUS Leske 



BRISSUS LATECARINATUS (Leske) 



Spatartffua brissus var. latccarinatus Leske, Additaraenta ad Jacob! Theodori 

 Klein, pp. XX, 185, 1778. 



Localities. — Bikini Atoll; Namu Island; drift on the north side of 

 the east end; Morrison, April 14, 1946. Two bare tests, U.S.N.M. 

 No. E. 7258. 



Bikini Atoll ; blasted out of a coral head in making a channel across 

 the flats just west of the beach on the west side of Bokororyuru 

 Island; Morrison, August 12, 1946. Fragments, U.S.N.M. No. E. 

 7290. 



Rongelap Atoll; lagoon side of Eniaetok Island; 12 feet; Brock 

 and Herald, July 20, 1946. One specimen, U.S.N.M. No. E. 7492. 



Note. — The two specimens from Namu Island (E. 7258) are 110 

 and 115 mm. in length. 



Genus MAR ETTA Gray 



MARETIA OVATA (Leske) 



Spatnuffus oratus Leskk, Additamenta ad .Tacobi Theodori Klein, p. 188, pi. 49, 

 ngs. 12. 1.^, 1778. 



Localities. — Bikini Atoll; 50-80 feet; August 15, 1947. One speci- 

 men, U.S.N.M. No. E. 7256. 



Bikini Atoll; in the lagoon; 100-140 feet; August 6, 1947. Three 

 small broken specimens, U.S.N.M. No. E. 7373. 



Eniwetok Atoll; Lidilbut Island, north side, outer reef flats, under 

 sand; Morrison, June 1, 1946. One specimen with parasitic gastro- 

 pods, U.S.N.M. No. E. 7504. 



Class ASTEROIDEA 



Family ASTROPECTINIDAE 

 Genus ASTROPECTEN Schultze 



ASTROPECTEN POLYACANTHUS Muller and Troschel 



Astropecten polyacanthus Muller and Troschel, System der Asteriden, p. 69, 

 1842 (Red Sea). 



Locality. — Eniwetok Atoll ; in the lagoon approximately 5 miles 

 north of the anchorage and about 3 miles west of Bogen Island; 

 Taylor, 1947. One small specimen, U.S.N.M. No. E. 7248. 



