No. 1615. ON A COLLECTION OF FEATHER STARS—CLARK. a) 
Grew IWISIIYCSVAINO)IMUS IDI AX, Jel, (Olleuelsc. 
Thysanometra tenelloides (A. H. Clark). 
Family PENTAMETROCRINID4. 
Genus DE CAVE ROG RUN US Miniekert. 
Decametrocrinus borealis (A. H. Clark). 
Gems IPITINIPAIMOS, WIROCIRION WS Ay Jalo Ollevelk. 
Pentametrocrinus diomedew (A. H. Clark). 
Pentametrocrinus japonicus (P. H. Carpenter). 
Pentametrocrinus tuberculatus (A. TI. Clark). 
Pentametrocrinus varians (P. H. Carpenter). 
The stalked crinoids known from the seas about southern Japan are: 
Metacrinus angulatus (P..H. Carpenter). 
Metacrinus rotundus (P. H. Carpenter). 
Metacrinus superbus (P. TH. Carpenter). 
Carpenterocrinus mollis (P. 1. Carpenter). 
Phrynocrinus nudus (A. H. Clark). 
Bathycrinus pacificus (A. H. Clark). 
IT have examined the following species labeled, probably errone- 
ously, as from Japan: 
Himerometra crassipinna (Hartlaub). 
The United States National Museum possesses Japanese specimens 
of all the stalked crinoids listed, and of all the comatulids except 
Comaster multiradiata, Himerometra doderleini, Thalassometra lati- 
pinna, and Thaumatometra alternata. 
There can be no doubt that there are yet many crinoids, especially 
comatulids, occurring about Japan of which we have no knowledge. 
