﻿284 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 102 



Family LUIDIIDAE 



Genus LUIDIA Forbes 

 LUIDIA MASCARENA Doderlein 



Luidia mascarena Doderlien, Die Asteriden der Sifiofiro-Expedition, pt. 2, p. 261, 

 fig. 5, 1920 (Mauritius). 



Locality. — Bikini Atoll ; in the lagoon ; Morrison, August 26, 1947. 

 One specimen, U.S.N.M. No. E. 7255. 



Note. — This specimen was kindly identified by Prof. Walter K. 

 Fisher. 



Family GONIASTERIDAE 



Genus CALLIASTER Gray 



CALLIASTER ELEGANS Doderlein 



Calliaster elegans Dodeklien, Bijdragen tot de Dierkunde, Amsterdam, Afl. 22, 

 p. 49, pi. 1, figs. 1-16, 1922 (Solor Strait, 113 meters). 



Locality. — Bikini Atoll; off Bikini Island; 400-450 feet; Kussell, 

 August 14, 1947. One specimen, U.S.N.M. No. E. 7365. 



Notes. — R=45 mm., r=18 mm.; R=2.4 r. This specimen agrees 

 fairly well with Doderlein's type specimen, which was dredged by 

 the Sihoga in the Solor Strait near Flores in 113 meters, though it is 

 rather more than tAvice as large. The plates of the disk agree with 

 those of the type. The innermost spines of the carinal row are 6 mm. 

 high, those following decreasing rapidly in height and disappearing 

 at the level of the third superomarginal. The plates of the disk, ex- 

 cept for those of the two rows adjoining the superomarginals, each 

 have a prominent central tubercle. There are no pedicellariae. 



There are eight superomarginals of which the outer five are in con- 

 tact in the midradial line. The two interradial superomarginals 

 each bear a prominent spine 2 mm. high on the inner edge, a shorter 

 spine or tubercle in the middle, and usually one or two tubercles near 

 the outer edge. The next two superomarginals on each side bear 

 similar but smaller spines. The following superomarginals bear 

 usually two or three tubercles near the inner edge, one in the middle, 

 and from one to three near the lower edge. 



The inferomarginals bear a group of from two to four tubercles 

 near the upper edge, or sometimes a group of three long spines. 



Each actinal plate bears a short stout spine. 



The adambulacral plates bear two large stout spines on the outer 

 surface and a comb of usually seven subequal furrow spines. 



The slight differences between this specimen and the type, the only 

 other specimen known, are probably due chiefly to size and age. 



