242 



INDEX OF GENERA AND SPECIES. 



Eetzia compressa, 14. 

 Kingicula, 112. 



Eingicula varia, 112. 



EoSTELLARIA, 123. 



Eostellaria canalifera, 123. 

 simplex, 124. 

 Bhynchonella, Carb., 12; Trias., 



34; Jur., 39. 

 Bhynchonella aequiplicata, 35. 

 gnathopbora, 39. 

 lingulata, 34. 



ElIYNCOPTERIS, 31. 



Bhyncopteris obesus, 32. 



Scalaria, 212. 



Scalaria Mathewsonii, 212. 

 Septifer, 186. 



Septifer dichotomus, 186. 

 Siliqua, 147. 



Siliqua Oregonensis, 147. 

 Solen, 146, 213. 



Solen Dicgoensis, 213. 

 parallelus, 146. 

 Spirifer, Carb., 13 ; Trias., 35. 



Spirifer Homfrayi, 35. 

 lineatus, 13. 

 Spiriferina, 14. 

 Straparollus, 120. 



Straparollus lens, 120. 



paucivolvus, 120. 



Tapes, 169, 214. 



Tapes Conradiana, 169. 

 ? cretacea, 214. 

 quadrata, 169. 

 Tellina, 155. 



Tellina Asbburnerii, 159. 

 Californiea, 161. 

 decurtata, 158. 

 Hoffman man a, 156. 

 Hornii, 160. 

 longa, 155. 



Tellina Mathewsonii, 158. 

 monilifera, 157. 

 ooides, 157. 

 parilis, 160. 

 ? quadrata, 159. 

 Eemondii, 156. 

 Whitneyi, 160. 

 Terebratella, 205. 



Terebratella obesa, 205. 

 Terebratula, Trias., 34; Jur., 41. 

 Terebratula Humboldtensis, 

 34. 

 Tessarolax, 126. 



Tessarolax distorta, 126. 

 Trapezium, 170. 



Trapezium carinatum, 170. 

 Trigonia, Jur., 48; Cret., 188. 

 Trigonia Evansii, 189. 



Gibboniana, 190. 

 pandicosta, 48. 

 Tryoniana, 188. 

 Trftonium, 94. 



Tritonium Diegoensis, 95. 

 Hornii, 94. 

 paucivaricatum, 95. 

 Wbitneyi, 66. 

 Trochosmilia, 207. 



Trochosmilia striata, 207. 

 Turnus, 145. 



Turnus plenus, 146. 

 Turrilites, 73. 

 Turris, 92. 



Turris Claytonensis, 92. 

 varicostata, 93. 



TURRITELLA, 131, 212. 



Turritella Cbicoensis, 133. 



infragranulata, 212. 

 infralineata, 131. 

 robusta, 135. 

 Saffordii, 135. 

 seriatim-granulata, 



132. 

 Uvasana, 134. 

 Veatcbii, 133. 



