6 . MARINE SHELLS. 
Cerithium nigrescens........... Menke:......: Florida 
Coripaninn einai ayan J tna erate eo ee eS oe re Florida 
Ceritiiunt validing.... 2.2.4 220.) 4 6... ls een Florida 
Cerithium versicolor............ CO. B.A... Texas 
CEROSTOMA. 
Cerostoma foliata ............. Gmiel...< :.\s«sennee California 
fi 4 eR eae CONT... «sd wees eee 
CHAIOPLEURA. (See Chiton.) 
CHAMA. 
(Clg ae Mrs naw S212 =, = e LAN... ++ 1 Florida 
Chiamiagex@eyiae. oS. 55 oS seo 5: Gon... i. 2¢ee eee California 
Chama pelineigdan.: io... 4. ..2.. 90Y .-. «a +: 2 a California 
Chamayspim@sa coi. soe o 5. SY. os... he California | 
Chatiawartesataes «>. +... Tae: 6. 1s >..Florida 
CHEMNITZIA. 
Chemnitzia chocolata........... Cor... . «cen California 
Chemnitzia tenuicula.......... Gide... 3. California 
Chemnitzia torquata............ Gid 02. 2 ...California 
: “ war, stylina Cpr... ...-2: eee California 
CHIONE. 
Chione.cancellata.\.--.-2-. 0022). DANN. . +. . A Florida 
Chione fluctiframa.<.:..0<..2..'. DDY 223 2s ee sit ee California 
Chione simillima.. 22... 7.0! .. SOY... California 
(Chigne eee ieitlas 5 oes Os. op 3s Vali... ee California 
CHITON. 
Ghitont(ischnochiton) cooper... ~~ ..:.... 22a California 
Chiton (Trachydermon) fallax. ..Cpr. (ms.).... EE California 
Chiton (Callochiton) fimbriatus .Cpr. (ms.)........... California 
Chiton (Chetopleura) gemmea..Cpr........ ........California 
Chiton (Trachydermon) hartwegii..Cpr........... ..- California 
Chiton (Mopalia) hindsii........ Gray... eee California 
Chiton (Leptochiton) internexus..Cpr..:..:.200 27%. - California 
