414 



Opistobranchiata, 280. 

 Ostreacea, 14. 

 P. 



Paludina balthica, 171. 

 Pandoridæ, 81. 

 Panopea arctica, 95. 



plicata, 93. 



norvegica, 94. 

 Parthenia, 199. 



eximia, 199. 



interstincta, 200. 



spiralis, 200. 

 Patella, 118. 



cerea^ 123. 



pellucida, 119. 



nibella, 121, 



vulgata, 118. 

 Patellidæ, 118. 

 Pecchiolia abyssicola, 82. 

 Pecten abyssorum, 22. 



antiqvatus^ 21. 



aratus, 17. 



danicus^ 18. 



fimbriatus, 21. 



furtivris, 19. 



grønlandicus, 23, 



Hoskynsii, 20. 



imbrifer, 20. 



islandicus, 16. 



mammillatus, 20. 



opercularis, 16. 



septemradiatus, 18. 



similis, 22. 



striatus, 19, 



sulcatus, 17. 



Testæ, 19. 



tigrinus, 18. 



vitreus, 21. 

 Pectinidæ, 16. 



Pellibrancliiata, 222. 

 Periploma pertenuis, 83. 



Philine, 293. 



aperta, 298. 



catena, 294. 



cingulata, 297. 



finmarchica, 296. 



flexuosa, 302. 



granulosa, 301. 



lima, 300. 



Uneolata, 300. 



Lovéni, 295. 



nitida, 298. 



pruinosa, 301, 



qvadrata, 299. 



scabra, 294. 



scutulum, 299. 



sinuata, 298. 



velutinoides, 302. 



vit re a, 298. 

 Philinidæ, 293. 



Pholadacea, 97. 



Pholadidæ, 97. 

 Pkolas crispata, 97. 

 Pileopsis, 145. 

 tPilidium, 144. 



commodum, 144. 



radiatum, 144. 

 Pilidium, 122. 

 Piliscus, 144. 



probus^ 145. 



Placophora, 108, 



Pleurotoma^ vide Bela. 

 Pleurotoina boreale, 219. 

 Pleurotomatidæ^ 217. 



Polybrauchiata, 314. 

 Polycera, 312. 



coruuta, 312. 



pudica, 313. 



qvadrilineata, 312. 



varians, 312. 

 Polyceridæ, 310. 

 Po ly tropa, 250. 



