415 



Polytropa lapillus, 250. 

 Pontolimax^ 323. 

 Poromya granulata, 90. 

 Portlandia arctica, 37. 



frigida, 39. 



intermedia. 38. 



lenticula, 39. 



lucida, 37. 



tenuis, 38. 



Prionoglossa, 214. 



Propilidium, 123. 

 ancyloide, 123. 

 Prosobranchiata, 108. 



Psammobia ferrøeusis, 79. 



tellinella, 79. 

 Ptenoglossa, 193. 

 Pteropoda, 328. 



Puncturella, 124. 



noachina, 124. 

 Purpura, 250. 



lapillus, 250. 

 Purpuridæ, 250. 

 Pyr amidellidæ, 198. 

 Pyrene, 251. 



costulata, 252. 



rosacea, 251. 



Raphitoma, 218. 



amoena, 220. 



anceps, 219. 

 Rhachiglossa, 243. 

 Rhipidoglossa, 124. 

 Rhynchonella, psittacea, 9. 

 Rhynchoaellid æ , 9. 

 Ritnula, 124. 

 Rissoa, 178. 



abyssicola, 176. 



arctica, 172. 



aculeus^ 172. 



albella, 183. 



Rissoa castanea, 174. 



cimicoides, 176. 



inconspicua, 182. 



interrupta, 180. 



Jeffrerjsii.^ 175. 



membranacea, 179. 



proxima, 173. 



punctura, 177, 



rujilabris, 180. 



Sarsii, 183. 



saxatilis, 172. 



sculpta, 176. 



soluia, 183. 



striata, 172, 



textilis, 111. 



turgida, 183, 



violacea, 180. 

 Rissoidæ, 169. 

 Rissoella eburnea, 206. 

 Rossia, 337. 



glaucopis, 337. 



papillifera, 337. 

 Rupicola distorta, 85. 



s. 



Saxicava arctica, 95. 



fragilis, 93. 



norvegica, 94. 



pholadis, 95. 



rugosa, 95. 

 S axi cavid æ , 92. 

 Scacchia, 64. 

 Scæa stenogyra, 330. 

 Scalaria, 194. 



grønlaudica, 104. 



Loveni^ 194. 



obtusicostata, 194. 



varicosa, 348. 

 Scalariidæ, 193. 

 Scaphander, 291. 



librarius, 292, 



