Vol. XXIX, pp. 105-108 June 6, 1916 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



THREE INTERESTING ADDITIONS TO THE CRINOID 

 FAUNA OF SAGAMI BAY AND SURUGA GULF, JAPAN. 



BY AUSTIN H. CLARK. 



During the last century the wonderfully rich marine fauna of 

 southern Japan has received more attention than the fauna of 

 any other portion of the vast Indo-Pacific area. The British 

 steamer "Challenger" took a few dredge hauls there, the 

 Swedish steamer ' ' Vega ' ' hrought back some interesting 

 specimens, while the United States steamer "Albatross" on 

 two cruises sixteen years apart, and the Japanese yacht 



Golden Hind ' ' in investigations covering a long series of 

 years, have done considerable intensive work. Individual 

 effort has figured largely in increasing our knowledge of the 

 Japanese fauna; among foreign investigators von Siebold, 

 Stimpson, Hilgendorf, E. S. Morse, Alan Owston, Doderlein, 

 Doflein and Haberer in particular have made extensive collec- 

 tions, while their work has been supplemented, especially in 

 later years, by that of a large number of able and energetic 

 Japanese naturalists. 



And yet the possibilities of this fauna are by no means 

 exhausted, for interesting new forms are constantly coming to 

 light in all classes. 



Of the three crinoids herein described two were collected by 

 Professor Doflein, the third by Mr. Alan Owston ; the last 

 represents a genus, the other two specific groups in their respec- 

 tive genera, hitherto unknown from Japan. 



Cotnantheria intermedia new species. 



This species in general structure resembles C. hriareus, C. rotula and 

 C. weberi. 



The arms vary in number from thirty-one to forty-eight, the average 

 number being forty; the division series and brachials resemble exactly 



25— Proc. Biol. Soc. Wash.. Vol. XXIX, 1916. (105) 



