298 



INDFX OF GENERA AND SPECIES. 



Trochus balcenarum, 83. 



brunneus, 84. 



canaliculatus, 83. 



costatus, 83. 



gibberosus, 83. 



inequalis, 83. 



marcidus, 84. 



ochraceus, 83. 



Pfeifferii, 84. 



undosus, 83. 

 Trophon, 2, 44, 70. 



multicostatus, 70. 



Orpheus, 70. 



ponderosus, 2, 70. 



squamulifer, 44, 70, 123. 



tenuisculptus, 70. 

 Truncaria, 74. 



corrugata, 74. 



TuRBINELLA, 157, 220. 



crassitesta, 157, 220. 

 Turbinolia, 276. 



Texana, 276. 

 Turbonilla, 12, 79, 114. 



aspera, 12, 79. 



papillosa, 114. 

 Turcica, 16, 84. 

 Turnus, 233. 



plenus, 233. 

 Turrilites, 138, 213. 



Oregonensis, 138, 213. 

 Turris, 5, 112, 217. 



Claytonensis, 217. 



raricostata, 217. 



transmontana, 112. 



varicostata, 217. 

 Turritella, 14, 80, 114, 169, 227, 

 263. 



Turn (el la Chicocnsis, 228. 



Cooperii, 80. 



dispassa, 228. 



Iloffmarmii, 14, 80. 



Inezana, 81. 



infragranulata, 227. 



infralineata, 227. 



iri'07-ata, 227. 



Jewettii, 80. 



Martinezensis, 169, 228. 



Oeoyana, 114. 



planilateralis, 227. 



robusta, 228. 



Saffordii, 228. 



seriatim-granulata, 227, 263. 



Uvasana, 228. 



variata, 80. 



Veatehii, 228. 

 Tylostoma, 261. 



mutabilis, 261. 

 Typhis, 214. 



antiquus, 214. 



Unio, 190, 245. 



Hubbardii, 190, 245. 



penultimus, 245. 

 Urosyca, 159, 221. 



caudata, 159, 221. 



Vanikoro, 115. 



Diegoaua, 115. 

 Varigera, 261. 

 Venericardia, 101. 



borealis var. ventricosa, 101. 

 Venus, 22, 55, 98, 118, 184, 238. 



sequilatcralis, 184, 239. 



