208 



988 Physa diaphana Tryon. 



3158 Pupa chordata Pfeiffer, 1856. 



Type locality: — Sinaloa, Mexico. The Baja Cal. locality is 

 based on Pupa Sterkiana — first determined as this species. 



3159 Pupa Orcutti 



Pilsbry, ms., later published as Pupa Californica var. diego- 

 ensis by Sterki. 



3160 Pupa ovata (see Vertigo). 

 1836 Pupa calami tosa 



1494 Pupa Hemphilli Sterki. 



3161 Rhodea Californica Pfeiffer, 1846. 



Monterey, Cal. (certainly an error). Bogota, New Granada 

 (T. Bland). 



3162 Variety Ramentosa Cp. 1891. 



Cooper later called this Columna ramentosa. 



San Jose del Cabo, Baja Cal., in a cave in the mountains. 



3163 Veronicella olivacea Stearns, 1871. 



Type locality: — Nicaragua, west slope (McNeil). Baja Cal. 

 (Hemphill). Hemphill denied finding this species in Baja Cal. 

 according to a later paper by Cooper. Lobitos creek, Cal. 

 (Stearns). 

 1083 Succinea oregonensis Lea. 



97 Melampus olivaceus 



957 Onchidella carpenteri W. G. Binney. 

 271 Pedipes liratus Binney 



98 Pedipes unisulcatus 



3164 Siphonaria aequilirata Cpr., 1867. 

 Margarita Island, Baja Cal., to South America. 



3165 Siphonaria lecanium Philippi, 1846. 



Cape San Lucas, Baja Cal., to Acapulco, Mexico. 



3166 Neritina Californica Reeve, 1845. 

 Gulf of California. 



3167 Neritina cassiculum Sowerby, 1832. 

 San Miguel, Baja Cal. Mazatlan. 



3168 Neritina picta Sowerby, 1832. 



Guaymas, Sonora, to Panama. Magdalena Bay, Baja Cal., '*in 

 brooks near the sea." This is a marine species as far as observed 

 by the writer. 



3169 Anodonta Californiensis 



British Columbia to Arizona. Colorado river. 



3170 Helisonia Amnion 



Klamath Lake, Oregon, to Colorado river (Cooper). 



3171 Planorbis Gracilentus Gould, 1855. 



Colorado Desert, Cal. If identical with P: Liebmanni, this has 

 a wide distribution, from Texas to Vera Cruz, and on the West 

 Coast from the above locality to Manzanillo (Orcutt). 



3172 Tryonia Exigua Conrad, 1855. 



Utah. Dos Palmas Springs, Colorado Desert (Orcutt). 

 1975 Tryonia clathrata St imps on 



991 Physa heterostropha Say. 34 



992 Physa humerosa Gld. 



1646 Gnathodon (Rangianella) mendicus Gld. 1851. 

 628 A in ni cola longinqua Gld. 



