216 University of California Publications in Zoology — [Vou. 14 
Sphenia fragilis Carpenter Cerithiopsis columna (Carpenter) 
Sphenia ovoidea Carpenter Chrysodomus kelletti (Hinds) 
Spisula faleata (Gould) Columbella tuberosa (Carpenter) 
Tindaria gibbsi Dall Crepidula dorsata Broderip 
Tindaria kennerlyi Dall Crepidula excavata Broderip 
Tindaria martiniana Dall Epitonium indianorum (Carpenter) 
Thracia beringi Dall Fossarus compacta (Carpenter) 
Thracia curta Conrad Fossarus fenestratus (Carpenter) 
Thyasira barbarensis Dall Galerus mammillaris (Broderip) 
Thyasira bisecta Conrad Hipponix cranioides (Carpenter) 
Thyasira excavata Dall Lacuna solidula (Loven) 
Thyasira trisinuata var. polygona Carpenter 
Jeffreys Lazaria subquadriata (Carpenter) 
Tivela stultorum Mawe Melanella compacta (Carpenter) 
Transennella tantilla Gould Murex trialatus (Sowerby) 
Turtonia minuta Fabricus Murex nuttalli (Conrad) 
Vesicomya lepta Dall Murex (Ocinebra) foveolata 
Vesicomya ovalis Dall (Hinds) 
Venericardia crebricostata Krause Nassa californiana (Conrad) 
Venericardia ventricosa Gould Odostomia angularis Dall and 
Yoldia beringiana Dall Bartsch 
Yoldia montereyensis Dall Odostomia oregonensis Dall and 
Yoldia orcia Dall Bartsch 
Yoldia sanesia Dall Odostomia tenuisculpta (Carpenter) 
Gastropoda* Pachypoma inequale (Martyn) 
Acmaea incessa (Hinds) Phoreus pulligo (Martyn) 
Acmaea triangularis Carpenter Puneturella cucullata (Gould) 
Aemaea instabilis (Gould) Solariella cidaris (A. Adams) 
Bittium eschrichti (Middendorff) Tritonium oregonense (Redfield) 
Calliostoma annulatum (Martyn) Trophon disparilis (Dall) 
Calliostoma canalieulatum (Martyn) Trophon scitulus (Dall) 
Calliostoma variegata Carpenter Trophon gracilis (Perry) 
* This list has been compiled from various authors. 
This long list will probably be modified as the different faunas are 
studied more intensely. However, it suffices to show that the known 
fauna of this region is considerably less than the actual fauna. 
The diserepaney between the number of known forms and the 
number obtained by the Survey is due in part to the faet that little 
attention was given to shore collecting. Mollusks were obtained, 
however, at the following shore stations: Bonita Point, Sausalito, 
Fort Point, Key Route Pier (Oakland), Point Richmond, Red Rock, 
and MeNear’s Landing. 
In the discussions that follow only the material obtained by the 
Survey will be considered unless the contrary is stated. As a matter 
of convenience the fauna obtained in the open ocean off the Golden 
Gate will be designated as the ‘‘outside’’ fauna in contrast to the 
““bay’’ fauna. 
