8 MARINE SHELLS. 
CINGULA. 
Cingula (Rissoa) aculeus........ Gid. >... .- = Rhode [sland 
CLATHURELLA. 
Clathurella (Borsonia) canfieldii..Dall................ California 
CLIDIPHORA. 
Ulidiphorartrilimiata. = ..°.5 05... COT. os Massachusetts 
CLYPIDELLA. 
Clypidella bimaculata.......... Dali...Santa Rosa IL, California 
CaiCUM. 
CeecunMeGoperniy......2..5. 622 .. CDT... .. os a ee California 
COLUMBELLA. (See Astyris.) 
CONUS. 
Conte CanmpnMIGHS. © iG. ans. Ads. :..:. . eee California ~ 
me . VG SUES SNE eer eee Monterey, California 
COOPERELLA. 
Cooperella scintilleformis...... Cpric. site San Diego, California 
CORBULA. 
Corbulapliteola cs, 5s) ccicwis ae e's! St Cor... Ae California 
CREPIDULA. 
Crepidula aculeata.<2 222.7. 3-<. Gil. .... >... California 
CrepidulayadunGa si... 2.2. 2s) SY... ++, -< casei California 
Crepidula convexa..... oe pee SOY s.0 »..- 2 5: South Carolina 
Crepidula cornea. (See glauca.) 
GCreprduta dorsatac o.5c0285 ss Brod... .... ae California 
ut « wan. lingulataGid.. ...°.\eeeeeee California 
Crepidula excavata............. Brod: ....) California 
Crepidula fornicata........ ....Say..Florida and Massachusetts 
