% 
ON A COLLECTION OF FEATHER STARS. OR COMATU- 
LIDS, FROM JAPAN. 
By Austin Hoparr CriarK, 
Of the United States Bureau of Fisheries. 
The United States National Museum has recently received from 
Mr. Alan Owston, of Yokohama, a small, but very interesting, collec- 
tion of unstalked crinoids made by Mr. Owston in Tokyo and Sa- 
gami bays and in Suruga Gulf, deposited by Mr. Frank Springer 
for study in connection with the materia! obtained in somewhat 
deeper water by the U.S. Fisheries steamer Albatross. 
Although containing only one hundred and thirty-one specimens, 
including forty-eight of Calometra multicolor and thirty of Cyllo- 
metra albopurpurea, there are three species new to science, Comaster 
imbricata, Hudiocrinus variegatus, and Thalassometra homachi, one 
which was previously known only from a single Challenger specimen, 
Charitometra distincta, two previously known only from the types 
in the Museum of Comparative Zoology, Compsometra serrata and 
Iridometra psyche, and three, Himerometra subcarinata, Thalasso- 
metra aster, and Charitometra lata, known only from the types in the 
U.S. National Museum. Of especial interest also is a series of seven 
specimens of 7ropiometra afra, affording an opportunity for a direct 
comparison of Australian and Japanese examples of this remarkable 
species. 
Order COMATULIDA. 
Family COMASTERID Ai. 
Genus COMASTER L. Agassiz. 
COMASTER ROBUSTIPINNA (P. H. Carpenter.) 
Sagam Bay, 35° 06’ north latitude, 189° 42” east longitude; 30 
fathoms; April 24, 1902. (Owston collection, No. 7215.) 
One specimen, with 38 arms. 
Sagami Bay, off Yenoshima; ‘“ probably 50 fathoms;” May 17, 
1902. (Owston collection, No. 7217.) 
One specimen, with 40 arms. 
Sagami Bay, off Yenoshima; March 27, 1905. (Owston collection, 
Nom 2) 
Two large specimens. 
PROCEEDINGS U. S. NATIONAL Museum, VOL. XXXIV—No. 1615. 
305 
Proc. N, Me vol. xxxivy—08——-20 
