88 



INDEX OF SPECIES. 



Patula 



Cooperi, 157. 

 Mazatlauica, 157. 

 sportella, 157. 

 strigosa, 157. 

 Pecten 



adspersus, 236, P 538. 

 (?tar.) aeqnisalcatns, 22, 26,78, 



85. 131, 15s, 170, 280. 

 altiplicatns, 81. 

 aspersus, 199, O 277 

 catilliformis, 77. 

 caurinus, 73. 85, 131,0 311,0 



348. 

 circularis, 40, 45, 76, . 107, 



250, 285, 290, O 352, P 



152- 

 dentatus, O 233, 0311,0 352. 

 deserti, 76, 81. 

 DieflFenbachii, 73. 

 digitatus, 207. 

 discus, 81. 

 excavatus, 14. 

 Fabricii, 60, O 211, O 218. 

 fasciculatus, 207, O 311. 

 floridus, 25, 322,0 207,0 311, 



O351. 

 hastatus, 14, 18,22, 81, 92, 131. 

 hericeus, 18, 92, 131, 212, 



0311,0348. 

 Hindsii, 60, 92. 

 inca, 199, O 277,0 311 

 intermedia, 80, 107. 

 irradians, 281. 

 Islandicus, 4, 20, 60, 70, 92, 



131, O 218, O223. 

 Jeffersonius, 81. 

 iffitus, 73. 

 laqueatus, O 288. 

 latiauritus 22, 45, 60, 131, O 



198, O 229, 233, 234, 



311, O 349, 351, V 219. 

 Madisonius, 77. 

 juagniflcus, O 185, 311, 



359, ■ • .. - , 



magnolia, 8t. > 



Pecten 



Meekii, 81. 



niesotiraeris, 45. 



monutimeris, 26, 78, 131, 151, 



O 198, 229, 233, 234, 



V 219. 

 Nevadanus, 77. 

 nodosus, O 233, 234, 311, 



O352. 

 nucleus, rar. O 290. 

 Pabloeusis, 80. 



paucicostatns, 22, 100, 131,281. 

 Pealii, 218. 

 pomatia, 14. 

 propatulns, 165, 367. 

 purpuratus, 102, 233, O 284, 



35>- 

 pyxidatus, 153. 

 rastellinus, 14. 

 rubidu!<, 4, 20, 92, 131, 207, 



O 218, 223, 311. 

 senatorius, 40, 73, O 282. 

 sericeus, O 207, O 311. 

 (?r<jr.) squarrosus, 22, 281. 

 subcrenatus, 153. 

 subnodosus, 24, 27, 107, 151, 



O 1S5, O311. 

 Townsendi, 18, 213, 311, 



O348. 

 Tumbezensis, 199, 277, 31 1. 

 tumidus, 35, 78, 85, O 1S5, 



187, 277, O 290. 

 tunica, 60, 131. 

 varius, 222, P 532. 

 ventricosus, 14, 24, 27, 40, 45, 



54, 78,85, 107, 131, 151, 152, 



170, 199, 280, 281, O 187, 



O 233, O 234, 277, 282, 



O 290, 311. 

 —^—— var. 22. 

 Yessoensis, 70, 74. 

 Pectunculus 



assimilis, 200, 1S2, 229, 



233, O 249, 277, P 144. 

 bioolor, 285, 290, O 310. 

 Californicus, 192. 



