294 



Pilidium radiatum, M. Sars 132. 



— rubellum, Fabricius 116. 

 Pisidium Steenbuchii, Møller 81, 268. 

 Placophora 107. 



Planorbis arcticus, (Beck) Mørch 261, 



262. 



— Nathorsti, Westerlund 258, 



262. 

 Pleuronectia lucida, Jeffreys 16. 

 Pleurotoma Beckii, Møller 158. 



— bicarinata, Couthouy 155. 



— borealis, Reeve 153, 154. 



— — — var. ven- 

 tricosa, Mørch 153. 



— cancellata, Mørch 150. 



— — Mighels et 



Adams var. Pingelii, 

 Møller 160. 



— declivis, Loven 152. 



— decussata, Couthouy 152. 



— elegans, Møller 151. 



— gigas, Beck 159. 



— grænlandica, Reeve 159. 



— multistriata, Jeffreys 163. 



— Pingelii, Beck 160. 



— pyramidalis, Strøm 161. 



— rubescens. Jeffreys 163. 



— rugulatus. Reeve 159. 



— schantaricum , Midden- 



dorff 159. 



— tenuicostata, M. Sars 164. 



— ïrevellianum, Turton 154. 



— turricula, Montagu var. 



exarata. Møller 146. 



— — — var. 

 nobilis. Møller 146. 



— — — var. 

 scaiaris. Møller 149. 



— violacea, Mighels 156. 



— — — var. cy- 



lindracea. Møller 

 157. 



— _ _ var. gi- 

 ganlea, Mørch 158. 

 — — var. 



venliicosa, Mørch 158. 

 Polycera (Palio) llolijøilii, Moller 251. 



Poromya subtrigona, Jeffreys 76. 

 Portlandia arctica, Gray 40. 



— expansa, Jeffreys 35. 



— frigida, Toreli 34. 



— intermedia, M. Sars 37. 



— — — var. 



major, Leche 37. 



— Jeff'reysi, Hidalgo 35. 



— lenticula, Møller 38. 



— lucida, Loven 36. 



— messanensis, (Seguenza) 



Jeffreys 33. 



— pusio, Philippi 33. 



— — — var. latior 



33. 



— pustulosa, Jeffreys 32. 



— sericea, Jeffreys 39. 



— tenuis, Philippi 39. 

 Pseudamussiam, Adams 10. 

 Puncturella Noachina, Linné 119. 

 Pupa Hoppii, Møller 264. 



— Stenbuckii, Beck 264. 

 Purpura lapillus, Linné 173. 



— — — var. imbri- 



cata, Lamarck 173. 

 Pyrene rosacea, Gould 172. 

 Pyrolophus deformis 212. 



Raphitoma amoena, G. 0. Sars 166. 

 Rhynchonella psittacea, Gmelin 2. 

 Rissoa (Onoba) aculeus, Gould 227. 



— (Cingula) arenaria, Mighels et 



Adams 223. 



— — castanea. Møller 223, 



224. 



— — — var. minor 



223. 



— (Alvania) cimicoides , Forbes 



226. 



— eburnea, Stimpson 222. 



— (Cingula) globulus. Møller 224. 



— (Paludiiiella) — — 225. 



— (Alvania) Jan-Mayeni, Frielc 



226. 

 Jeffreys), Loven 223. 



— Mighelsi, Stimpson 223. 



— saxatilis. Moller 227. 



