/I CAMFOIINIA ACADEMY OF SCIENCES. 



MOLLUSCA (Continued). 



Quuui Venerirnrilin IjAMArck '28 



M. bnrbaroiisis Stkakns ''-8 



55. voiitrU-osa GouLU '28 



Genus L<kznrin Conrad '29 



50. ■iibqiinilratn CAiti-E.NTEn '29 



Si'PKIlf'AMII.y CHAMACEA '30 



Family XX. Chamida '30 



OenuH Cbiiiun (Pi.iSY) Linnk '30 



57. oxo|,'yro Conkad '30 



58. pelluciila Sowerby '30 



SUPKRFA MIL Y /Air/XACKA 131 



Family XX /. l.uciniil'r 131 



Genus Lucina Brocdikhe 131 



59. aciitiliiie«tn Conrad 131 



60. cnlifoniica Conrad 132 



61. unltalli Conrad '32 



62. tenuisculpta Carpenter '33 



Family XX /J. Diplodonlida 133 



Genus Diplodouta 133 



Section Diplodouta, «. » 133 



63. (D.) orbella Goold 134 



64. (D.) scrricata Reevk 134 



Family XXI II. Cryptodontida 135 



Genus Thyasira Leach 135 



65. bisecta Conrad 135 



66. gouldi PiiiLippi 135 



SUPERFAMILY LEPTONACEA 136 



Family XXIV. Leptonida 136 



Genus Boruia Philippi 136 



67. retifera Dall 136 



Genus Kellia Tcrton 136 



Section Kellia Tcrtos, «. s 136 



68. (K.) laperousii Deshayes 137 



69. (K.) suborbicularis Montagu 137 



Family XX I'. KelliclUda: 138 



Genus Aligena H. C. Lea 138 



70. cerritensis, sp. nov 138 



SUPERFAMILY CARDIACEA 138 



Family XX IV. Cardiida 138 



Genus Cardium (Linn^) Lamarck 138 



Subgenus Trachycardium Morcii 138 



71. (T.) quadrigenarium Conrad 139 



Subgenus Riugicardium Fispher 139 



72. (R.) procernm Sowerby 139 



Subgenus Cerastoderma Morch 140 



73. (C.) corbis Martyn 140 



Subgenus Lsevicardium Swainson 140 



74. (L.) elatum Sowerby 141 



75. (L.) snbstriatum Conrad 141 



Genus Protocardia Beyrich 142 



76. ccutifilosa Carpenter 142 



SUPERFAMIL Y VESERAVEA 142 



Family XX VII. Vencridtt 142 



Subfamily Venerinrr. 142 



Genus Tivela Link 142 



77. crassatelloides Conrad 143 



Genus Callista PoLi 143 



78. newcombiana Gabb 143 



79. subdiapbana Carpenter 144 



80. subdiapbana Carpe:<ter, var. pedroana, var. nov 144 



