1885.] PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 613 



Among the specimens from station 2363 are several witli uniformly 

 light colored spines, a sort of yellowish or dirty white color. These 

 light spines arc most common on the ventral surface, but sometimes 

 also occur scattered among the dark si)iues of all parts of the test, pro- 

 ducing a very curious effect. In one specimen nearly all the spines are 

 white. 



Aspidodiadema antillaruni A. Agassiz. 



Stations 2385, 2392, 2393, 525-730 fathoms (10663). 

 Aspidodiadema Jacobyi A. Agassiz. 



Stations 2346, 2347, 2350, 200-216 fathoms (10664) ; station 2359, 231 

 fathoms (10665). 



Asthenosoma hystrix A. Agassiz. 



Station 2350, 213 fathoms (10673), two young specimens ; station 

 2358, 222 fathoms (10068), several large specimens, the largest measur- 

 ing 'about 200 millimeters in diameter, in alcohol; station 2415,440 

 fathoms (10674), small to medium size. 



Phormosoma placenta Wyv. Thomson. 



Station 2376, 324 fathoms (10670) ; station 2383, 1181 fathoms (10071), 

 fine series ; station 2395, 347 fathoms (10672). 



Temnechinus maculatus A. Agassiz. 



One living specimen from station 2370, 25 fathoms (10689), and dead 

 specimens from the two following stations: 2372, 27 fathoms (10090); 

 2405, 30 fathoms (10691). 



Trigonocidaris albida A. Agassiz. 



Stations 2321, 2327, 2341, 2342, 2343, 2349, depth 143-279 fathoms 

 (10694); stations 2335, 2347, depth 204-216 fathoms (10695); station 

 2357, 178 fathoms (10692). The following from the Gulf of Mexico col- 

 lections of 1884 were accidentally included in the last report among 

 the young of the dee[) water variety of Toxopneustes variegatus : Station 

 2159, 98 fathoms (10693); station 2166, 196 fathoms (8414); station 

 2167, 201 fathoms (8412). 

 Toxopneustes variegatus A. Agassiz. 



Typical specimens were collected at the following localities : Station 

 2317, 45 fathoms (10681) ; station 2362, 25 fathoms (10682) ; station 

 2407, 24 fathoms (10683.) These specimens were mostly rather small, 

 and of a pinkish color in alcohol, the test being darker than the spines. 



The small deep-water form was obtained at the following localities : 

 Station 2316, 50 fathoms (10687) ; station 2318, 45 fathoms (10685) ; 

 stations 2326, 2327, 2335, 2337, 2338, 2342, 2345, 2346, 2349, depth 182- 

 204 fathoms (10686) ; station 2345, 184 fathoms (10684) ; station 2347, 

 216 fathoms (10088). 

 Hipponoe esculenta A. Agassiz. 



Cozumel Island, Yucatan (10669), a single specimen. 



