094 BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



TRICHONISCUS PUSILLUS Brandt. 



Trii'honisctis pusillw* BRANDT, Bull. Soc. Impor. des Naturalistes de Moscou, VI, 

 1833, p. 12, pi. iv, fig. 9. 



/tea riparia KOCH, Deutschl. Crust., 1835-44, p. 22. 



Itea Lrrix ZADDACH, Synops. Crust. Pruss., 1844, p. 16. 



Philougria riparia KINAIIAN, Nat. Hist. Rev., IV, 1857, p. 281, pi. xxn, figs. 1-4. 



Trichmiscus pusilhts STUXBER<;, Ofversigt-Vetensk-Akad. Forhandl., 1875, -No. 

 2, p. 49. BUDDE-LUND, Crust. Isop. Terrestria, 1885, p. 244-245. UNDER- 

 WOOD, Bull. 111. State l^ab. Nat. Hist., II, 1886, p. 364. SARS, Crust, Nor- 

 way, II, 1899, p. 161. RICHARDSON, American Naturalist, XXXIV, 1900, 

 p. 307; Proc. U. S. Nat. Mus., XXIII, 1901, p. 575. 



c .,...^, ^^^ d 



FIG. 733. TRICHONISCUS PCSILLUS (AFTER SARS). a, ANTERIOR AND POSTERIOR LIPS. 6, FIRST 

 MAXILLA. <, DORSAL VIEW OF FEMALE, d, FIRST ANTENNA, e, SECOND ANTENNA. /, TERMINAL 



JOINT OF FIRST ANTENNA, g, MANDIBLES, h, MAXILLIPED. i, LAST SEGMENT OF ABDOMEN AND 



TTROPODA. j, SECOND MAXILLA, it, FLAGELLUM OF SECOND ANTENNA. I, HEAD (LATERAL VIEW). 

 m, FIRST PLEOPOD. n, OUTLINE OF TERMINAL SEGMENT, o, SEVENTH LEG. p, SECOND PLEOPOD. 

 q, FIRST LEG. r, THIRD PLEOPOD. , FIFTH PLEOPOD. 



