260 Miss H. Richardson on the Isopods of the 



Chelisoches Dohertyi^ n. 



Antennae IT-segmentatse, articulis 1-13 atra, l-t-15 alba, 16 fuscum, 

 17 nigrum ; elytra et alae nigra. 



Patria. Macassar (coll. m.). 



Chelisoches semiluteus^ Borra., n. 



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

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



AiitenusD IS-segmentatse, 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. raea). 



Chelisoches Fece^ Borra. 

 Milne Bay, New Guinea. 1 ? . 



Opisthocosmia armata, de Haan. 

 Macassar. 5 S • 



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 ? . 



Dornians Park, East Grinstead, 

 August 3rd, 1899. 



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

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

 Harriet Kichardson. 



[Continued from p. 187.] 



III. VALVIFERA. 



Analytical Key to the Families of Valvifera. 



a. Body more or less broad, depressed. I-^egs usually 

 nearly alike, but tirst three pairs sometimes with 

 propodus dilated and dactylus reflexed IX. Idoteid.b, 



