NO. 1701. NORTHWEST PACIFIC ISOPODS— RICHARDSON. 83 



Remarks. — There are four spines on the propodus of the prehensile 

 legs in these specimens. 



ROCINELA ANGUSTATA Richardson. 



Rocinrla laticauda Richardson (not Hansen), Proc. Amer. Philos. Soc. vol. 37, 

 1898, pp. 14-15, figs. 5-6; Proc. U. S. Nat. Mus., vol. 21, 1899, p. 828 (part). 



Rocinela angustata Richardson, Proc. U. S. Nat. Mus., vol. 27, 1904. p. 33; Bull. 

 U. S. Bureau of Fisheries, vol. 24, 1905, p. 214 ; Bull. U. S. Nat. Mus., No. 54, 

 1905, pp. 206-207. 



Locality. — Station 503G, south coast of Hokkaido at Urakawa 

 light, N. 444° E., 16.8 miles (lat. 41° 58' N.; long. 142° 30' 30" E.) ; 

 station 5045, at lat. 42° 11' 10" N. ; long. 142° 12' E. 



Depth. — 359-464 fathoms in brown mud, fine black sand and in 

 coral and sand. 



ROCINELA MACULATA Schioedte and Meinert. 



Rocinela maculata Schicedte and Meinert, Naturhistorisk Tidsskrift (3), vol. 

 12, 1879-80, p. 393, pi. 12, figs. 10-12 ; vol. 14, 1883-84, p. 413, pi. 18, fig. 13.— 

 Bovallius, Biliang till Kgl. Sv. Vet. Akad. Handling., vol. 10, No. 11, 1885, p. 

 10, pi. 2, figs. 18-23. — Hansen, Vidensk. Meddel. naturli. Foren. i. Kj0bh., 

 1887, p. 187.— Richardson, Bull. U. S. Nat. Mus., No. 54, 1905, pp. 198-199. 



Locality. — Station 4807, on the way from Hakodate, Japan, to 

 Ebisu, Sado Island, Sea of Japan (by the Tsugaru Strait) at Cape 

 Tsiuka, S. 58° W., 10.3 miles (lat. 41° 36' 12" N.; 

 long. 140° 36' E.). 



Depth. — Forty-four fathoms, in shells and coarse 

 gravel. This species has been recorded from West 

 Greenland, Vladivostok, Kamtchatka, and east Asia, p i g. o.— rocinela 



The specimen taken by the Bureau of Fisheries niponia. head 



^ 111 1 j» 1 ^^^ FIRST TWO SEG- 



steamer Albatross has a black spot on the fourth ments of thorax. 

 and fifth segments of the abdomen on either side ^ ^=- 

 as well as on the last segment at the base. The spines on the propodus 

 are not as long as mentioned in the description of the type by Schioedte 

 and Meinert. 



ROCINELA NIPONIA, new species. 



Body ovate, a little more than twice as long as wide (8^ mm.: 

 18 mm.). 



Head triangular in shape, 2 mm. long and 3 mm. wide, with the 

 front produced in a broad median triangular process. Eyes large, 

 composite, ajid separated in front by a distance equal to the length 

 of one eye. The first pair of antennse extend to the posterior margin 

 of the head and almost to the end of the peduncle of the second an- 

 tennae; the flagellum is composed of six articles, the first one of which 

 is twice as long as the second and the two terminal ones minute. The 



