58 AMERICAN JOURNAL 



1214 341 Limnopliysa ferruginea, Hald. 



"Oregon." (==humiHs, Say?) 

 Santa Cruz, common in streams. 

 840 364 Fh/sa aahbii, Tryon. 



Mountain Lake, S. F. Co., to Los Angeles. 

 Santa Cruz, common in San Lorenzo R. ■ 

 1234 378 Planorhis tujnens, Cpr. 



Petaluma, Cal., to Mazatlan. 

 Santa Cruz, in San Lorenzo R. 

 854 381 Gyraulus vermieularis, Gld. 



Walla Walla, W. T., to Santa Cruz, Cal. 

 Santa Cruz, in San Lorenzo R. 

 1197 395 Ancylus fragilis, Tryon. 



San Francisco to Santa Cruz. 

 Santa Cruz, in San Lorenzo R. 

 346 402 Dentah'um Indianorum, Cpr. 

 Str. Fuca to Santa Barbara. 

 12 living, many dead, 20 — 30 fms. Probably =^pretio- 

 sum, Nutt. 

 830 406 Crijptocliiton SteUeri, Midd. 



Str. Fuca to Monterey — Kamscbatka. 

 Santa Cruz, 1. w., common. Smithsonian coll. 

 517 408 Tonicia lineafa, Wood. 



Str. Fuca t,o Monterey — Sitka ; Kamtscbatka. 

 Valves, bcb., 1 living, 7 fms. rock. Smithsonian coll. 

 310 410 3IopaKa muscosa., Gld. 



Str. Fuca to San Diego. 

 Many living, 1. w. Nuttall and Smithsonian coll. 

 411 Mojoalia Wossnessenskii, Midd. ? 



Str. Fuca to Santa Cruz — Sitka. 

 Santa Cruz, 1. w. 

 1412 412 Mopalia Kennerleyi^ Cpr. 



Str. Fuca, W. T., to Monterey. 

 Valves, on bcb. 



1367 414 Mopalia Ilindsu, Gray. 



Str. Fuca to Monterey. 

 Santa Cruz, 1. w. 



1368 416 3IopaUa vespertina, Gld. 



Str. Fuca to Monterey, Cal. 

 Santa Cruz, common. Probably = next. 

 1368a 417 3Iopalia lignosa, Gld. 



Str. Fuca to Monterey — Sitka. 

 Valves, bch. Hartweg coll. 



