268 



BULLKTIN 31 



268 



Trinacria cainei 20 46 



cossmanni -....20 45 



cuneus /<?... 37, 38 



decisa iS, ig 41 



declivis ig 42 



ellipsis 79... 44, 45 



ledoides /c9...38, 41 



var. lisbonensis 45 



ovalis ig 43 



pectu ncularis ig 42 



perplana /9.--43. 45 



pulchra a?.. .40, 41 



var. sabinica iR 41 



Venericardia 77 



alticostata j<9...82, 85 



bilineata 82 



blandingi 82, 86 



carsonensis 85 



coloradonis ^(9...8i,85 



complexicosta .31 84 



densata 77 



eutawcolens 85 



var. flabellum 2g...%o, 85 



fungina 85 



var. fungina 2S 79 



funiculus ^7... 79, 85 



greggiana 83, 85 



inflatior j/ 87 



var. juvenis 88 



Venericardia mooreana 77 



natchitoches J0...82, 85 



parva J/...87, 88 



perantiqua 85 



planicosta 2j, 2S...'j'] 



potapacoensis 77 



praecisa 85 



rotunda 2S, 2g..jS, 85 



var. secans 82, 86 



subrotunda. 86 



var. symmetrica 88 



subquadrata 82 



tetrica 85 



tortidens j/ 87 



var. trapaquara 2g 80 



trapaquara jo. ...81 , 85 



vigintinaria • • • • 77 1 86 



wilcoxensis 83, 85 



Venus retisculpta 153 



vespertina 1 44 



Verticordia dall iana 1 83 



eccensis .j^^ 182 



mississippiensis .55 181 



sotoensis 182 



X 



Xylophaga ? mississippiensis 59 198 



Yoldia claibornensis 2j 72 



psammotsea 2^ 72 



END OF VOLUME Vt 



