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. 



striiilata, 31, 52, 251, 316, 

 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 



Califoniioum, 40, 286, P 



265. 

 cliloi'omplialas, 40. 

 Grabiotense, 82. 

 radians, P 264. 

 lopas 



sertum, P 489. 

 Iphigenia 



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



P42. 

 laevigata, 245, 304, 366, 

 P 42, P 548. 

 Iphinoe 



ooronata, 72. 

 Isapis 



fenesti'ata, 99, 114, 142, 241. 

 maculosa, 257, 327, P 247, 



P 355- 

 obtnsa, 99, 142. 



ovoidea, 142, 241, 230, 326, 

 P 355- P 356, U 205. 

 Ischnochiton 

 Beanii, 108. 



Elenensis, 38, 39, 104, 266. 

 'var. espressus, 38, 266. 

 fleotens, 8g, 92, 

 (Jothicus, 98. 



Isoanochiton 



limacifoi-mis, 63, 108. 

 Magdalensis, 18, 107, 135, 151, 



266. 

 Mertensii, 89. 

 Nuttallii, 113. 

 parallelus, 104, 212, 213. 

 peetinatus, 98, 

 (_?var.) prasiuatus, 104, 213, • 

 pseudodentieus, 16, 92, 98. 

 retiporosus, 8g. 

 sanguineus, 266. 

 scabricostatus, 98. 

 serratus, 104, 213. 

 trifidus, 8g. 

 veredentieus, 98, 135. 

 Isognomon 



Chemnitzianus, 24, 27, 107, 199, 



249, 297, 311, 352, 



O 3(>3, 365, P 150. 



var. 199. 



Chemnitzii, P 151 : [^-anus.] 

 costellatus, 107, 349, V 219. 

 flexuosus, 311, 363. 

 incisus, 107. 

 Janns, 107, 250, 311, P 



151- 

 perna, P 150. 



Janira 



bell a, 80. 



dentata, 14, 27, 81, 98^ 107, 131, 

 153- 



Esti-ellana, 81. 



excavata, 131, 153. 

 Jeffreysia 



Alderi, 109, 143, 257, 327, 

 P362. 



bifasciata, 109, 257, 32"' 

 366, P 362, P 363. ' 



opalina, 366. 



translueens, 99, 143. 



turaens, 257, 327, P 366. 

 Jouannettia 



Darwinii, 251. 



peotinata, 121. 



