266 



INDEX. 



COBBICULA annosa 26 



emacerata 26 



COBBULA 178, 2a9 



erassiplica 178 



Fouiki 180 



naautoides 239 



perbrevis 178 



snbcompreasa 180 



CORBULID^ 178,239 



CORIMYA 170 



tenuis 170 



Ceassatella. 115,209,234 



alta 234 



CaroUnensis IIC 



Conradi 209 



cuDeata 118 



curta 209 



Delawarensis 119,210 



lintea 116 



litt oralis 212 



MonnioutheDsis 119 



obliquata 235 



perplana 123 



pleuronema 212 



prora.. 120 



pteropsis 118 



rhombea 213 



RipUyana 116 



subplana 121 



transversa 122 



vadosa 116 



- CRAeSATELLIDJE 115 



Crassina vela 231 



Criocardium dumosum 133 



multiradiatum 133 



nucleolus 214 



Ctenoides acutilineata 62 



denticuticosta 63 



pelagica 61 



reticulata 63 



■Cucullcea antrosa 96 



neglecta 96 



terminalis 98 



Tippana 95 



transversa 89 



transversalis 89 



vulgaris 98 



Cultellus cretaceus 186 



Cgclas cretacca 129 



Cymbophora lintea 172 



Cymella 142 



Meeki 142 



Cynctclonema 50 



Burlingtonensis 53 



? perlamellosa 50 



simpiicia 51, 52 



. C YPEIMERIA 156 



alta 157 



cretacea 156 



creta^sensis 156 



densata 157 



depressa 156 



excavata 159 



Heilprini 160 



spissa 160 



•C YPRINIDJE 24, 144, 215 



Cythere excavata 159 



DiANCHORA 58 



ecbinat-a 58 



DiCERAS dactyloides 131 



DlMYARIA 82 



Dione Delaivarensis 153, 237 



Tippana 154 



Diplodonia paralis 163 



DiPLOSCHIZA 43 



cretacea 43 



DONACINID^ffi 171 



DONAX Fordi 171 



DOSINIA 161 



densata 157 



depressa 156 



donata 157, 159 



• ?erecla 162 



excavata. 159 



Gabbi 161 



Saddonjieldentis 156 



Etea Delawarensis 210 



Monmoutkcnsis 119 



prora 12i) 



transversa 122 



EXOGYKA 39 



Americana 39 



costata 39 



lateralis 194 



torosa 39 



Fragilla elegantula 141 



protexta 140 



Fragum 139 



tenuistriatum 139 



FULVIA 139 



tenuis - 139 



G ASTROCHiENA Americana 203 



Gastroch^nid^ 192, 203 



Gcrvillia ensiformi-s 73 



Gervilliopsis 73 



ensiforniis 73 



minima 74 



Glossiis Conradi 200 



Qlycimeris decisa 181 



Gnathodox tenuidens 27 



Ooninsoma infiaia 144, 147, H8 



GOULDIA 124 



Conradi 125 



crenulirata 128 



deeemnaria 124 



decUvis 126 



paralis 126 



Gbyph^a 36,194,224 



aucella 37 



Bryani 2U6 



var. precedena 194 



convexa 36,37 



digitata var. TucumcaHi 36 



lateralis 194 



mutahilia 36 



Pitcheri 36 



Tucumcarii 36 



vesicularis 36, 224 



var. aucella 36, 37 



var. navia 36, 3>! 



var. navicella 38 



GRVPHiEA vomer 194 



