524 



CLARK 



spines. Previously reported from Peru and also from Hood and 

 Chatham Islands in the Galapagos. 

 Heliaster multiradiata (Gray). 



There are 2 specimens in alcohol from Iguana Cove, one with 21 

 and one w^ith 25 rays, and 2 dry specimens from Tagus Cove, one 

 w^ith 23, and one with 26 rays; the last is the largest, about 170 mm. 

 across. R : r = 7 : 4. The alcoholic specimens are, on the aboral 

 side, blue-black marked with pale yellow ; spines yellow ; oral side 

 pale dirty brown. The dry specimens are yellow, irregularly marked 

 with black ; oral side yellow, but the basal half of the adambulacral 

 spines, and the oral spines, are black. Previously reported from the 

 Hawaiian Islands, California, Mexico and the Galapagos Islands. 



The following Asteroids have been previously reported, but all are of ques- 

 tionable standing and are therefore not counted as properly belonging in this list. 

 Culcita scJnnidelia7ia (Retzius). 



A species of the western Pacific and the Indian Oceans, reported by Gray from 

 the Galapagos, but perhaps his specimen was incorrectly labelled. 



Gymnasterias valvulata Perrier. 



A species based on a young individual which may be a young Nidorellia or 

 possibly an immature Gymnasterias carittifera, a well-known Panama species. 

 A9tcanikastei ellisii (Gray) 



Another western Pacific species, the occurrence of which at the Galapagos is 

 probably based on an incorrectly labelled specimen. 



OPHIUROIDEA. 



Ophiura teres Lyman. 



The collection contains a single dry specimen from Narboro Island. 

 It is notable for its large size, the disc being 35 mm. in diameter, and the 

 rays 135 mm. long. The disc is closely and uniformly granulated, 

 the radial and oral shields being completely concealed. The arm spines 

 are 12 for some distance out on the arm, and the upper arm plates are 

 often broken into 2 pieces, or less commonly 3, or even 4, but some 

 are unbroken. This species is known from Lower California, from 

 the west coast of Central America, and was taken at the Galapagos 

 Islands by the Hassler Expedition. 

 Ophionereis albomaculata E. A. Smith. 



Of this species, peculiar to the Galapagos, the collection contains one 

 dry specimen from Narboro, and 22 alcoholic specimens from Iguana 

 Cove. There are always four arm-spines for some distance out on the 

 arms, and in one specimen five. Color somewhat variable ; in the dry 

 specimens olive-green marked with yellowish-white, especially on the 

 upper arm-plates ; in the alcoholic specimens, the prevailing tint is 



