175 



2555 Zonitoides alii aria Drap. 



Europe. — Boulder, Colo, in a greenhouse (see Nautilus 20: 



144). 



o 



2556 Henderson, Junius: 



Mollusca of Colorado. Univ of Colo studies 4: — (F & Ap 

 1907). 



2557 Cymatium corrugatuni tremperi 



Periostracum blackish brown, coarse, lamellose with, on the 

 varices, strong, sparse, projecting hairs reaching 6 mm in length; 

 in the channels only 1 or 2 coarse irregular, markedly larger rib- 

 lets. Length 8 5, aperture, including canal, 36, max. diam. 38 

 mm.; 5 rather prominent axial ribs on the last whorl between 

 the last pair of varices. San Pedro, Cal. (R. H. Tremper). 



Dall, Nautilus 22:85. 



2558 Vitrea fagalis 



Cockerell, Nautilus 22:89. Florissant, Colo. (Miocene). 



2559 Vertigo occidentalis 



"Shell of the shape, size and appearance of a smaller Vert, 

 ovata Say, but perforated; short ovate, chestnut colored, trans- 

 parent; slight impressions over the palatal folds, no crest, no 

 callus inside; lamellae and folds; parietal and angular close to- 

 gether, coherent, short, low, somewhat massive; columellar only 

 indicated by a slight angular projection; the 2 palatals quite 

 small, short, the upper close to margin. Alt. 2 mm. Soft parts 

 not seen." — Dall, Nautilus 22:90. 



Type locality: San Bernardino Mts., alt. 7600 ft. (S. S. Berry). 



2500 Ilyanassa obsoleta 



Nautilus 22:91, recorded from the oyster beds in San Fran- 

 cisco bay, Cal. (E. W. Gifford). Introduced from the Atlantic 

 coast. 



2501 Odostomia terricula 



La Jolla, Cal. (Nautilus 21:92). 



2502 Murex Carpenteri alba 



Berry, Nautilus 21:105. Newport, Orange Co., Cal. 



2503 Berry, S. S. 



Molluscan fauna of the San Bernardino Mts., Cal. Nautilus 

 21:121. 



Notes on Nos. 2564-2569 and others. 



2504 Pisidium Californicum Newc. 



2505 Musculiuni Raymond! Cp. 

 2500 Physa Cooperi Tryon. 



2507 Physa politissima Tryon. 



2508 Vitrina Alaskana Dall. 



2509 Euconulus fulvus Drap. 



2570 Turbonilla (Pyrgiscus) castanella 



Substituted for T. (P.) castanea, U S Nat Mus pr — 109, by 

 Dall, Nautilus 21:131, preoccupied name. 



2571 Odostomia (Amaura) Canfieldi 



Dall, 1. c. substiuted for O. (A.) Montereyensis D & B, U. S. 

 Nat Mus pr — 509. 



2572 Milax gagates plumbea 



Boulder, Colo., greenhouses, probably introduced from the 

 Pacific coast. 



