60 



INDEX OF SPECIES. 



lanthina 



fragilis, 52, 186, 364, P 185. 



globosa, 52, 251, P 187. 



pallida, 366. 



prolongata, 74, 251, 364, 

 366, P 185, P 187. 



striolata, 52. 



striulata, 31, 52, 251, 316, 

 O 364, 366, P 185. 



var. contorta, 251, P 

 186. 

 Iberus 



Gaulterianus, P 247. 



sportella, 157. 

 Imperator 



olivaceus, P 227. 



serratus, 98, 138. 



unguis, 29. 

 Infundibulum 



Califoruicum, 40, O 286, P 

 265. 



cliloromplialus, 40. 



Gabiotense, 82. 



radians, P 264. 

 lopas 



sertura, P 489. 

 Iphigenia 



altior, 23, 27, 202, 245, 304, 

 P 4 2. 



laevigata, O 245, 304, 366, 



P 42, P 548. 

 Iphinoe 



coronata, 72. 

 Isapis 



fenestrata, 99, 114, 142, 241. 



maculosa, 257, 327, P 247, 



P355- 



obtusa, 99, 142. 

 ovoidea, 142, 241, 230, 326, 



P 355, P 356, U 205. 

 Ischnochiton 

 Beanii, 108. 



Elenensis, 38, 39, 104, 266. 

 ror. expressus, 38, 266. 

 flectens, 89, 92. 

 Gothicus, 98. 



Iscnnochiton 



limaciformis, 63, 108. 

 Magdalensis, 18, 107, 135, 151, 



266. 



Mertensii, 89. 

 Nuttallii, 113. 

 parallelus, 104, 212, 213. 

 pectiuatus, 98. 

 (?yar.) prasiuatus, 104, 213. 

 pseudodeutieus, 16, 92, 98. 

 retiporosus, 89. 

 sanguineus, 266. 

 scabricostatus, 98. 

 serratus, 104, 213. 

 trifidus, 89. 

 veredentiens, 98, 135. 

 Isognomon 



Chemnitzianus, 24, 27, 107, 199, 



249, 297, 311, 352, 



o 363, o 365, P 150- 



var. 199. 



Chemnitzii, P 151: [=-anus.] 

 costellatus, 107, 349, V 219. 

 flexuosus, 311, 363. 

 incisus, 107. 

 Janus, 107, 250, 311, P 



IS*- 



perna, P 150. 



Janira 



bella, 80. 



deutata, 14, 27, 81, 98, 107, 131, 



153- 



Estrellana, 81. 

 excavata, 131, 153. 

 Jefifreysia 



Alderi, 109, 143, 257, 327, 



P 3 62. 



bifasciata, 109, 257, 327, 



366, P 362, P 363. 

 opalina, 366. 

 translucens, 99, 143. 

 lumens, 257, 327, P 366. 

 Jouannettia 



Darwinii, 251. 

 pectinata, 121. 



