574 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



Dr. Sixten Bock's expedition to Japan station 28; Misaki; 2-3 meters; rocky bot- 

 tom; June 14, 1914 [Gisle"n, 1922]. 



Dr. Sixten Bock's expedition to Japan station 38; Misaki; 2-4 meters; rocky 

 bottom; July 9, 1914 [Gisle"n, 1922]. 



Near Misaki; Prof. Bashford Dean [Kirk, 1911] (11, U.S.N.M., 35058). 



Misaki; 219 meters; Alan Owston; original No. 6802 (1, U.S.N.M., 35043). 

 PI. 82, fig. 225. 



Misaki; J. F. Abbott (1, L. S.). 



Misaki [Hara, 1895]. Same [Mortensen, 1920]. 



Uraga Channel, at the entrance of Tokyo Gulf; 46 meters; Alan Owston, June 16, 

 1901 [A. H. Clark, 1908] (1, U.S.N.M., 35024). 



Uraga Channel; entrance to Bayami; 135 meters: Prof. Franz Doflein, October 29, 

 1904; original No. 289 (1, U.S.N.M., 35758). 



Tokyo Bay; Prof. Edward S. Morse [P. H. Carpenter, 1881, 1888; von Graff, 

 1884; Hartlaub, 1912] (9, M. C. Z., 195; B. S.). 



Japan; von Siebold [J. Muller, 1841, 1849; Dujardin and Hupe, 1862; P. H. 

 Carpenter, 1879, 1881, 1883, 1888; Bell, 1882; A. H. Clark, 1911] (1, L. M.). 



No locality (probably Tokyo Bay) [Hartlaub, 1912]. 



Erroneous locality. Eight miles outside Hong Kong harbor (lat. 22 12' N., 

 long. 114 15' E.); 25 meters; Captain Suensson, November 16, 1911 [A. H. Clark, 

 1913; GislSn, 1927] (1, C. M.). This is a specimen of C. pinguis. 



Geographical range. Southern Japan, from the Korean Straits eastward to 

 Tokyo Bay. 



Bathymetrical range. From the shore line down to 256 meters. The average of 

 28 records is 76 meters. 



Thermal range. From 11.28 to 16.72 C. The average of 4 records is 14.29 C. 



Occurrence, habits, etc. Dr. Edwin Kirk remarked on the preponderance of females 

 over males in this species. He wrote that among nearly 30 individuals collected at a 

 single locality (near Misaki) there were no males. The females in all cases bore large 

 numbers of ripe ova. 



Doctor Kirk's observations on the food of this species were given in volume 1, 

 part 2, on page 613. 



While searching for the pentacrinoids of Compsometra serrata on the rocky shores 

 near the biological station at Misaki Dr. Th. Mortensen found a single 20-armed 

 specimen of this species. He noted, however, that it is abundant in other localities 

 near the biological station. 



History. This species was originally described as Alecto japonica by Johannes 

 Muller in 1841. Muller's description was based upon notes taken by Troschel on a 

 specimen in the Leyden Museum which had been collected by von Siebold in Japan. 

 In 1849 Muller repeated the original description without change under the name 

 Comatula japonica. 



Dujardin and Hupg in 1862 published a translation of Muller's description of 1841. 



In 1879 Dr. P. H. Carptenter listed 7 species which he was unable to assign either 

 to Actinometra or to Antedon because the descriptions were inadequate and he had 

 had no opportunity of examining the types. One of these was Comatula japonica. 



