262 



Bulletin 31 



262 



Cardita bilineata j/ 86 



carolinensis 85 



subquadrata .j/ ...... 86 



subrotunda .j/ 86 



viginti nar ia ...3/ 86 



Cardium claibornense 7/ 132 



var. gainesense 131 



harrisi ^/ 131 



hatchitigbeense 132 



magnum 133 



ouachitense /^ 132 



Caryatis exigua 148 



exigua -// 150 



Chama monroensis 7/ 130 



dementia mercenaroidea j/ 151 



Coralliophaga claibornen- 



sis ^S 154 



Corbis claibornensis ;o 123 



distans 1 24 



lamellosa 123 



undata 40 124 



Corbula 185 



alabamiensis stock 1 85 



alabamiensis .56 1 85 



aldrichi var 188 



var. amara 200 



var. citronella 185 



compressa .^/ 187, 189 



conradi 186 



densata 1S6 



extenuata ^58 1 94 



var. fossata jS 193 



var, gregorioi 185, 188 



gibbosa .jS 191 



ignota 1 9 J 



var. ima 185 



murchisoni ^S 191 



nasuta i 85 



on iscus 191 



perdubia 187 



perdubia 1 88 



rugosa 188, 258 



smithvillensis 57 18S 



subengonata 185, 186 



Corbula .subnasuta 185 



texana 57 1 90 



wailesiana 



Crassatella alta 104 



Crassinella minor .ji* 92 



Crassatella flexurus 100 



halei 96 



palmula 90 



productus 100 



protextus 99, 1 00 



texalta 193 



trapaquara 96 



tumidula 96 



Crassatellites altef ormis 99 



altus J5, j6 104 



antestriatus j^ 98 



clarkensis j^ 1 00 



f errocarolinus 100 



clarkensis, var. ludovici- 



anus 102 



ludovicianus 102 



minor 92 



negreetensis .jj 97 



obliquatus 103 



parvus 93 



postclarkensis 100 



productus 1 00 



protextus jj loi 



ps ychopterus 89 



rliomboideus .j^ 99 



texaltus j6 103 



texanus .jy 97 



trapaquara .jj 96 



Crenella costata 36 



isocardioides // 35 



latifrons // 35 



margaritacea // 35 



Crustuloides, n, subgen. 89 



Cuculla^arca cuculloides 51, 54 



Cultellus conradi 59 195 



Cumingia ? keittensis 5^, jj 173 



Cuna ? astartoides j^ 94 



