238 



INDEX OF GENERA AND SPECIES. 



Astarte Tuscana, 179. 

 ventricosa, 50. 



ASTROC(ENIA, 208. 



(?) Astroccenia petrosa, 208. 

 ATURIA, 59. 



Aturia Mathewsonii, 59. 

 AVICULA, Trias., 29; Cret., 186. 

 Avicula Homfrayi, 29. 

 mucronata, 30. 

 pellucida, 186. 

 AXIN^A, 197. 



Axinsea cor, 198. 



sagittata, 197. 

 Yeatchii, 197. 



BACULITES, 80. 



Baculites Cbicoensis, 80. 

 BARBATIA, 216. 



Barbatia Morsel, 216. 

 BELEMNITES, Jur., 53; Cret., 58. 



Belemnites impressus, 58. 

 BUCCINUM, 96. 



Buecinum liratum, 96. 

 BULLA, 143. 



Bulla Hornii, 143. 



CALLIANASSA, 57. 



Callianassa Stimpsonii, 57. 

 CARDITA, 174, 215. 



Cardita Hornii, 174. 



ventriformis, 215. 

 CARDIUM, 171. 



Cardium annulatum, 171. 

 Brewerii, 173. 

 Cooperii, 172. 

 Placerensis, 173. 

 K6mondianum, 172. 

 CERATITES, 22. 



Ceratites Haidingerii, 22. 



Whitneyi, 23. 

 CERITHIOPSIS, 116. 



Cerithiopsis altemata, 116. 



CHEMNITZIA, 115. 



Chemnitzia Spillmani, 115. 

 CHIONE, 213. 



? Chione angulata, 213. 



ClNULIA, 111. 



Cinulia JMathewsonii, 111. 

 obliqua, 111. 

 pinguis, 112. 

 CLISIOPHYLLUM, 8. 



Clisiophyllum Gabbi, 8. 

 CONUS, 122. 



Conus Hornii, 122. 



Re"mondii, 122. 

 sinuatus, 123. 



CORBULA, Trias., 29; Cret., 148. 

 Corbula Blakei, 29. 



cultriformis, 149. 

 Hornii, 149. 

 parilis, 150. 

 (?) primorsa, 148 

 Traskii, 149. 



CORDIERA, 93. 



Cordiera micropt} T gnia, 93. 

 CRASSATELLA, 181, 214. 



Crassatella grandis, 181. 

 TJvasana, 214. 

 CRENELLA, 186. 



Crenella concentrica, 186. 

 CRIOCERAS, 75. 



Crioceras latus, 76. 



percostatus, 77. 

 R6mondii, 75. 

 CRYPTA, 136. 



Crypta pileum, 137. 

 CUCULL^EA, 195. 



Cucullaea Mathewsonii, 105. 



truncata, 196. 

 CYLICHNA, 143. 



Cylichna costata, 143. 

 CYLINDRITES, 115. 



Cylindrites brevis, 115. 

 CYPR^EA, 129. 



Cyprffia Bayerquei, 129. 



