AETICLE III 
CATALOGUE OF THE RECENT SHELLS, WITH DESCRIPTIONS OF THE NEW 
SPECIES. 
BY AUGUSTUS A. GOULD, M. D. 
The collection consists of fresh water shells from the Colorado desert, and other localities, and of land and marine shells 
from the coast between San Francisco and San Diego. The new species are indicated by an asterisk.(*). 
o. 
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Name. 
Locality. 
San Diego_ 
Pecten monotimeris, Conrad_ 
_do___-_------------- 
Pecten ventricosus, Sowerby, (also tumidus, Sow.).._ 
Mytilus edulis,(l)___ 
San Francisco_____ 
Modiola capax, Conrad_ 
San Diego__ 
Venus Nuttallii, Conrad____ 
Verms fluotifraga Sowerby_ _ _ 
San Pedro.______ 
San Diego_ _ 
Tapes grata, Say, T. discors., Sowerby, (straminea, Conrad)_ 
San Pedro__ 
®Tapes gracilis, Gould___....__ 
_do_______ 
Cyclas, (imperfect)__ 
Colorado Desert___ 
-Cardium cruentatum, Gould_ 
San Diego_ ___ 
Lucina orbella, Gould_ 
San Pedro_ 
Lucina Nuttallii, Conrad_ -________ 
Mesodesma rubrotincta, (?) Sowerby_-------_---------------- 
Tellina vicina Adams________ 
San Diego_ 
Tellina seota Conrad _ ___ 
San Pedro__ 
Spbenia Californica Conrad ___ 
San Diego_....___ 
Petricola carditoides, Conrad, (P. cvlindracea, Desh.)-:- 
goleenrtus Califnrnieusis Conrad _ __ 
Monterey—San Pedro___ 
San Diego____.... 
Gnathodon Lecontei, Conrad, (G. trigonuin, Pettit) ---------------- 
Colorado Desert..___ 
Lottia scabra, Gould _ _ mm _-_ 
San Francisco_.... 
Lottia patina, Pisebsoboltz __ __ 
San Pedro___- 
Scurria pallida, Gray, (Lott, mitra, Prod.)-___------__ 
Calyptrea hispida Prod. 
San Pedro San Diego_ 
Crepidula incurva Prod. 
San Pedro___A -_- 
Bulla nebulosa Gould 
San T)iego_ __ __---------- 
