296 



INDEX OF GENERA AND SP.ECIES. 



Surcula Claytonensis, -217. 



inconspicua, 151, 217. 



prseattenuata, 150, 217. 



raricostata, 217. 



sinuata, 150, 217. 



Tryoniaua, 6, 47, 72. 

 SYCODES, 160, 221. 



cypraeoides, 160, 221. 

 Sycotypus, 111, 113. 



modestus, 113. 



Ocoyanus, 113. 



Oregonensis, 111. 



TAMIOSOMA, 61, 107. 



gregaria, 61, 107. 

 TAPES, 25, 57, 97, 119, 241, 265. 



Conradiana, 241. 



eretacea, 241. 



diver sum, 97. 



gracilis, 98. 



Hilgardi, 265. 



Inezensis, 119. 



linteatum, 97. 



montana, 119. 



quadrata, 241. 



Staleyi, 57, 98. 



staminea, 97. 



tenerrima, 97. 



truncata, 25, 98. 

 TELLINA, 92, 117, 182, 237. 



sequalis, 182, 238. 



albaria, 117. 



alta, 92. 



arctata, 118. 



Ashburnerii, 238. 



bitruncata, 117. 



Tcllina Bodegensis, 92. 



calcarea, 124. 



Californica, 238. 



congesta, 92. 



decurtata, 237. 



Diegoana, 117. 



emacerata, 92. 



Gouldii, 93. 



Hoffman nian a, 182, 237. 



Hornii, 238. 



inconspicua, 94, 124. 



inquinata, 93. 



lata, 124. 



ligamentina, 93. 



longa, 237. 



Mathewsonii. 237. 



monilifera, 237. 



nasuta, 93. 



obruta, 117. 



Ocoyana, 118. 



ooides, 237. 



Oregonensis, 93. 



parilis, 238. 



Pedroana, 93, 124. 



proxima, 124. 



quadrata, 237. 



B&nondii, 182, 237. 



secta, 93. 



sordida, 124. 



tenera, 124. 



tersa, 93. 



undulifera, 183, 238. 



Whitneyi, 238. 

 TEREBRA, 162, 223. 



Californica, 162, 223. 

 TEREBRATELLA, 35, 204, 253. 



obesa, 253. 



