260 Miss H. Kichardson on the Isopods of the 



Chelisoches Dohertyi^ n. 



Antennae 17-segmentatae, articulis 1-13 atra, 14-15 alba, 16 fuscum, 

 17 nigrum ; elytra et alse nigra. 



Patria. Macassar (coll. m.). 



Chelisoches semiluteuSf Borm., n. 



Chelisoches melanocejihalus, Dohrn, var, nov., Burr, Ann. & Mag. Nat. 

 Hist. (6) XX. p. 315 (1897). 



Antenna) 15-segnientatse, 1-4 testaceis, 5-10 brunneis, 11-12 palli- 

 dis, 13-15 fuscis ; elytra et alse fusco-brunnea. 



Patria. W. Java, Pengalengan (coll. Brunner, coll. mea). 



Chelisoches FecB^ Bonn. 

 Milne Baj, New Guinea. 1 ? . 



Opisthocosmia armata, de Haan. 

 Macassar. 5 ^. 



Opisthocosmia for cipata^ de Haan. 



5 ? , Sangir, of the variety with the red head (v. Burr, 

 op. cit. p. 316). 



Opisthocosmia tenella, de Haan. 



Macassar. 1 ? . 



Forficula Alberti, Dubr. 



Milne Bay, New Guinea. 1 ? . 



Dormans Park, East Griustead, 

 August 3rd, 1899. 



XXVI. — Key to the Isopods of the Pacific Coast of North 

 America J loith Descriptions of Twenty-two new Species. By 

 Harriet Richardson. 



[Continued from p. 187.] 



III. VALVIFERA. 



Analytical Key to the Families of Valvifera. 



a. Body more or less broad, depressed. Legs usually 

 nearly alike, but first three pairs sometimes with 

 propodus dilated and dactylus reflexed IX. Idoteid^. 



