228 



RICHARDSON 



ment. The terminal segment is triangularly produced, with the apex 

 somewhat rounded. The uropoda are short, styliform; the outer 



branch is the stouter and 

 extends a little beyond 

 the extremity of the inner 

 branch. Both branches 

 are tipped with a few 

 hairs. 



Only a single speci- 

 men was obtained by the 

 It was found on the beach 



FIG. 116. Leg of first pair (X 23). 



Harriman Alaska Expedition, 

 at Seldovia, Cook Inlet. 



FIG. 117. Uropod 



The type is in the U. S. National Museum, Cat. No. of left side (x 77)- 



28,772. 



BIBLIOGRAPHY. 



BATE, SPENCE. 



1866 Lord's Naturalist in British Columbia, London, n, p. 281. 



BENEDICT, JAMES E. 



1897 A Revision of the Genus Synidotea. Proc. Acad. Nat. Sci. 



Phila., p. 393. 



1898 Two New Isopods of the Genus Idotea, from the Coast of Cali- 



fornia. Proc. Biol. Soc. Wash., xn, pp. 54, 55. 



BRANDT, F. 



1851 Crustacea. Middendorff's Reise in den aussersten Norden und 

 Osten Sibiriens, St. Petersburg, n, pt. I, p. 146. 



BRANDT, J. F. 



1833 Conspectus monographic Crustaceorum Oniscodorum La- 

 treilli. Bull. Soc. Imper. des Natur. de Moscou, vi, p. 172. 



BUDDE-LUND, G. 



1885 Crustacea Isopoda Terrestria per familias et genera et species 

 descripta, Haunias, pp. 261, 262, 264. 



DANA, JAMES D. 



1853 Crustacea. U. S. Expl. Exp. during the years 1838-42 under 

 the command of Charles Wilkes, U. S. N., xiv, pt. n, pp. 

 704, 742, 778 ; pi. XLVI, fig. 6 ; pi. XLIX, fig. 7, pi. LIT, fig. 4. 



1854- Catalogue and Descriptions of Crustacea collected in Cali- 

 1855 fornia by Dr. John L. Le Conte. Proc. Acad. Nat. Sci. 



Phila., vn, pp. 175-177. 

 DOLLFUS, ADRIEN. 



1889 Sur quelques Isopodes du Muse*e de Leyde. Notes from the 



Leyden Museum, xi, pp. 93, 94, pi. v. 



