a RY aes e ‘ ie 
40 TGs Ve eae Re 
95 Haminea vesicula 
96 Haminea virescens 
435 Hipponyx antiquatus Linne, 
430 Isapis obtusa Carpenter. 
385 Janira dentata Sowerby 
$51 Leda cuneata? Sowerby. 
863 Lima orientalis A. Adams. 
122 Liocardium elatum 
1238 lLiocardium substriatum 
219 Liotia acuticostata Cpr. 
77 Litorina planaxis 
2749 Lucapineila callomarginata Cpr. 
291 Lutricola alta Conr 
111 Macoma indentata 
3231 M: aurora. Gulf of Cal.—Panama. 
298 Macoma secta Conr. 
2145 Macrocallista squalida Sowerby. 1835. 
1636 Mactra (Mactrotoma) nasuta Gld. 1851, 
397 Mangilia variegata Carpenter. 
2338 Marginella politula Cooper. 
164 Marginella regularis Cpr 
97 Melampus olivaceus 
3168 Neritina picta Sowerby, 1832. 
2284. Nitidella cribraria Lam. 
2824 Genus Odostomia Fleming. 
2843 O: Pedroana. San Pedro. 
2846 O: turricula. San Pedro. 
168 Olivella biplicata Sby 
2407 Olivella intorta Cpr. 
2051 Olivella (anazora Ducl. var.?) Porteri 
$3 Omphalius aureotinctus 
220 Omphalius fuscescens Phil 
2387 Ostrea cumingiana Dunker. 
2385 Ostrea fisheri Dall. 
2383 Ostrea iridescens Gray, 1854. 
2389 Ostrea palmula Cpr. 
2175 Paphia grata 
2323 Paradione squalida Sby. 
271 Pedipes liratus Binney 
300 Petricola carditoides Conr 
2012 Perticola denticulata Sby. 
217 Phasianella compta Gld 
2294 Planaxis nigritella Forbes, 
70 Polynices uber 
82 Pomaulax undosus 
2905 Psammobia Californicus Conrad. 1848. 
2277 Purpura triserialis Blainv. 
2746 Pyramidella Adamsi Cpr. 
3292 Rissoina nereina. Point Abreojos, Baja Cal. 
3281 Rissoina stricta Menke. Gulf of Cal. 
107 Sanguinolaria nuttallii 
1568 Saxicava arctica L. 
2266 Siphonaria lecanium Cpr. 
100 Solen rosaceus 
5212 Strigilla fucata Gould, 1851. 
437 Spiroglyphus lituella Morch. 
2290 Strombus gracilior 
2142 ‘Tivela Byronensis Gray. 1838. a 
ee 
