INDEX OF GENERA AND SPECIES, 



Action, 142. 



Actseon impressus, 142. 

 Act^onina, 113. 



Actseonina Californica, 114. 

 pupoides, 113. 

 Amauropsis, 109. 



Amauropsis alveata, 110. 



oviformis, 109. 

 Ammonites, Trias., 24; Cret, 60. 

 Ammonites Ausseanus, 25. 

 Batesii, 67. 

 Billingsianus, 26. 

 Blakei, 24. 

 Brewerii, 62. 

 Chicoensis, 68. 

 complexus ?, 69. 

 ( ? ) Cooperii, 69. 



Ilaydenii, 62. 

 Iloffmannii, 65. 

 Homfrayi, 26. 

 Newberryanus, 61 

 Pcruvianus, 63. 

 ramosus, 65. 

 Ramsaueri, 27. 

 Remondii, 66. 

 subtricarinatus,60 

 Traskii, 63. 

 Anatina, 150. 



Anatina inequilateralis, 151. 

 ( ? ) lata, 151. 



Tryoniana. 150. 



Ancillaria, 100. 



Ancillaria elongata, 100. 

 Ancyloceras, 78. 

 Angaria, 121. 



Angaria ornatissima, 121. 

 Anisomyon, 142. 



Anisomyon Meekii, 142. 

 Anomia, 203. 



Anomia lineata, 203. 

 Anthonya, 181. 



Anthonya ciiltrifoi-mis, 182. 

 Aporrhais, 127. 



Aporrhais angulata, 128. 

 Californica, 128. 

 cxilis, 129. 

 falciformis, 127. 

 Arca, 193. 



Area Breweriana, 193. 

 decurtata, 195. 

 gravida, 194. 

 Hornii, 194. 

 Arcuitectonica, 116. 



Arehiteetonica cognata, 117. 

 Hornii, 117. 

 inornata, 118. 

 Veatchii, 116. 

 Asaphis, 154. 



Asaphis undulata. 154. 

 Astarte, Juras., 50; Cret., 178. 

 Astarte Conradiana, 178. 

 Mathewsonii, 179. 



(237) 



