92 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



vol. 37. 



Genus EXOSPH^EROMA Stebbing. 



EXOSPH^ROMA OREGONENSIS (Dana). 



Exosphwroma oregonensis Dana, Proc. Acad. Nat. Sci. Phila., vol. 7, 1854-55, 

 p. 177 ; U. S. Expl. Exp. Crust., vol. 14, 1853, p. 778, pi. 52, fig. 4.— Stimpson, 

 Bost. Joum. Nat. Hist, vol. 6, 1857, p. 509.— Richardson, Bull. U. S. Nat. 

 Museum No. 54, 1905, pp. 296-298. 



Sphceroma olivacea Lockington, Proc. Cal. Acad. Sci., vol. 7, 1877, pt. 1, p. 45. 



Sphceroma oregonensis Richardson, Proc. U. S. Nat. Mus., vol. 21, 1899, p. 836; 

 Ann. Mag. Nat. Hist. (7), vol. 4, 1899, p. 180; American Naturalist, vol. 34, 

 1900, p. 223 ; Harriman Alaska Exp. Crust., vol. 10, 1904, p. 214 ; Proc. XT. S. 

 Nat. Mus., vol. 27, 1904, p. 659. 



Localities. — Nazan Bay, Atka ; Unalaska ; Attu. 

 Depth. — Shore. 



Genus CYMODOCE Leach. 



CYMODOCE JAPONICA Richardson. 



Cymodoce japonica Richardson, Proc. IT. S. Nat. Mus., vol. 31, 1906, pp. 7-8 

 (male). 



Cymodoce affinis Richardson, Proc. U. S. Nat. Mus., vol. 31, 1906, pp. 11-12 

 (female). 



Localities. — Hakodate Bay, Japan ; Otaru, Hokkaido ; Nanao ; Mo- 

 roran, Japan; station 4879, at Oki Shimi, S. 70° W., 7.5 miles (lat. 

 34° 17' N. ; long. 130° 15' E.) and station 4877, S. 37° W., 6.3 miles 

 (lat. 34° 20' 30" N. ; long. 130° 11' E.) ; station 4849, on the way 

 irom Saigo, Dogo Island, Oki Group, to Matsu Shima, Sea of Japan 

 (off coast of Korea) at lat. 36° 46' N. ; long. 132° 15' E. 



Depth. — Collected around surface light; shore; 59 fathoms in fine 

 gray sand, broken shells ; 846 fathoms, in green mud and globigerina. 



Remarks. — Cymodoce affinis is probably the female of Cymodoce 

 japonica, and I therefore unite these two species. A large number of 

 specimens of both sexes were collected in the same locality, which has 

 conviced me that the two species heretofore recognized are the same. 



Cymodoce acuta Richardson 0 is the female of an unknown male, 

 which is probably quite similar to Cymodoce japonica. The female of 

 Cymodoce acuta is very much like the female of Cymodoce japonica. 



One specimen, a male, which I have doubtfully referred to this 

 species, was collected at station 4876 in eastern channel of Korea 

 Strait, vicinity of Oki Shima, at S. 29° W., 5.3 miles (lat. 34° 20' N. ; 

 long. 130° 10' E.), at a depth of 59 fathoms, in fine gray sand and 

 broken shells. It differs from the type in having longer uropoda 

 and in. having the body covered with thick hairs. It is a small speci- 

 men and probably younger than the others in the collection. 



«Proc. U. S. Nat. Mus., vol. 27, 1904, pp. 38-39, 



