170 
2495 Rostanga pulchra 
2496 Cadlina marginata 
2497 Cadlina flavomaculata 
2498 Doriopsis fulva 
2499 Aigires albopunctatus 
2500 Laila 
2501 + Laila Cockerelli 
Also found at La Jolla and San Diego, Cal. (Ckll). 
2502 Triopha maculata 
2503 Triopha grandis 
2504 Polycera atra 
2505 Acanthodoris Hudsoni 
2506 Acanthodoris brunnea 
2507 Ancula Pacifica 
2508 Hopkinsia 
2509 Hopkinsia rosacea 
Also collected at La Jolla, San Diego, Cal. (Miss V. Thomas). 
2510 Williamson, Mrs. M. Burton: 
Some West American shells. So Cal acad sci b 4:118, de 
scribes 3 forms as new (numbers 2511-2513). 
2511 # #Corbula luteola rosea 
2512 Drillia moesta maculata 
2513 Calliostoma canaliculatum parvum 
2514 Cerithidea sacrata hyporhyssa 
Berry, Nautilus 19:133, f.—Smooth or nearly so, more taper- 
ing than the typical form, quite heavy and solid, callus of aper- 
ture lighter and browner, aperture smaller and less inflated. San 
Diego, Cal. 
2515 Cerithidea sacrata pullata 
A heavily ribbed form named by Gould. 
2516 Lymnza Hinkleyi 
Baker, Nautilus 19:142. Snake river, Idaho (A. A. Hinkley). 
2517 Whiteaves, J. F.: 
Notes on some fresh-water shells from the Yukon territory. 
Nautilus 19:1. 
2518 Hemphill, Henry: 
A second contribution to West Coast conchology. Nautilus 
19:5-8, 19-24. 
2519 KEpiph. sequoicola soqueli . 
“Shell broadly umbilicate, thickly and regularly striate, very 
dark brown approaching black, of uniform color with the excep- 
tion of 2 parallel white bands above the middle of the body-whorl, 
shell depressed with depressed spire, whorls 7, the last much in- 
flated, strongly banded within. Greater diam. 28, height 12 
mm.’’—Rowell, Nautilus 19:41. 
Type locality: “‘Santa Cruz Mts., Cal., midway between Soquel 
creek and Skyland.”’ 
2520 Oreohelix yavapai compactula 
Cockerell, Nautilus 19:46. Pecos canyon, N. M. (pleistocene).. 
2521 Williamson, Mrs. M. Burton: 
