University of California Publications in Geology [Vol. 11 



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Calyptraea radians (Lamarck) 165 



Genus Crepidula 165 



Crepidula praerupta Conrad 165 



Crepidula rostralis Conrad - 166 



Family Natieidea - 166 



Genus Natica 166 



Natica (Ampullina) gabbi, n. sp 166 



Natica (Euspira) ramonensis, n. sp 166 



Natica (Neverita) recluziana Petit 167 



Natica (Neverita) recluziana andersoni, n. var. 168 



Genus Sinum 169 



Sinum scopulosum Conrad 169 



Family Turritellidae 170 



Genus Turritella 170 



Turritella diversilineata Merriam 170 



Turritella porterensis Weaver 171 



Turritella porterensis sobrantensis, n. var 171 



Family Cerithiidae 171 



Genus Potomides 17] 



Potomides (Cerithidea) branneri, n. sp 171 



Family Vermicular iidae 172 



Genus Vermicularia 172 



Vermieularia t, sp 172 



Family Doliidae 172 



Genus Ficus 172 



Ficus pyriformis Gabb 172 



Family Nyctilochidae 173 



Genus Bursa 173 



Bursa mathewsonii (Gabb) 173 



Family Columbellidae 173 



Genus Columbella - 173 



Columbella (Mitrella) tenuilineata, n. sp 173 



Genus Amphissa 174 



Amphissa pulchrilineata, n. sp 174 



Family Nassidae 174 



Genus Molopophorus - 174 



Molopophorus biplicatus (Gabb) 174 



Family Buccinidae 175 



Genus Searlesia 175 



Searlesia dalli, n. sp 175 



Genus Chrysodomus - 175 



Chrysodomus "1 puleherrimus, n. sp 175 



Family Muricidae 176 



