NO. 2295. 



NEM' NORTH PACIFIC MOLLUSKS—DALL. 



295 



polar forms at the west and a few species of the Oregonian fauna 

 reach both coasts of the Pacific, but only sufficient to contrast with 

 the body of the Asiatic fauna. 



Jn the present paper the locality of the type specimen under 

 description and the number of the type in the Museum Register is 

 given; the entire range covered by the species as far as now known 

 will appear in the Checklist when issued. The manuscript of tho 

 latter is ready for the printer and together with the already published 

 Checklist of the bivalves will cover all the marine moUusca of the 

 region specified except the Nudibranchs and Cephalopods which are 

 referred to specialists. 



The number of new forms described in the present paper is 222, 

 of which 26 are from the region of the Gulf of California, 4 from the 

 Panamic region, 9 from the Galapagos Islands, 18 from Japan and 

 the adjacent Asiatic coast, and the remainder from San Diego, 

 northward on the American coast to the Aictic Sea. Only the latter 

 group will be included in the checklist, the others being extralimital. 



REFERENCES TO GENERA. 



Page. 



Chrysodomus 322 



Circulus 368 



Cithna 351 



Clava 346 



Cocculina 356 



Colus 314 



Coralliophila 339 



Crawfordina 306 



Crepidula 351 



Cryptogemma 301 



Cryptonatica 351 



Cylichnella 300 



Diaphana 299 



Eglisia 348 



Elachinina 354 



Epitonium 340 



Euspira 352 



Fossarus 350 



Ganesa 368 



Granigyra 368 



Graphis 342 



Ealiotis 370 



Haloconcha 350 



Havdnoea 300 



Hyalina 308 



Iselica 351 



Kurtziella 304 



Lacuna 348 



Latifusus 314 



Latisipho 321 



Acteodna 296 



Advietc 306 



Aesopus 332 



Agathotoma 305 



Alabina 345 



Algamorda 348 



Alguroda 348 



Alia 330 



Alipurpura 332 



Amphissa 331 



Anachis 329 



Ancistrolepis 312 



Asperoscala 340 



Astraea 356 



Astyris 331 



Atrimitra 308 



Aulacofusus 315 



Beringius 31 1 



Boetica 349 



Boreomelon 308 



Boreotrophon 336 



Borsonella 302 



Buccinum 324 



Bullaria 300 



Calliostoma 359 



Cancellaria 306 



Cantharus 329 



Carinaria 342 



Cerithiopsis 344 



Chlorostoma 359 



