BOBEAL TEOVINCE. 



61 



I •Crenella nigra. 



• „ discors, L. 



• „ decussata (glandula, Tot.) 

 Pecten Islandicus. 



f Ostrca edulis (borealis, Lam. ?) 

 •Anoinia ephippium. 



• „ aculeata. 

 „ squamula? 



•Terebratulina caput-serpentis. 

 •RhynchoneUa psittacea. 



•Dendronotus arborescens. 



Polycera Lessonii ? 

 P AniphisphjTa hyalina (debilis P) 



Cylichna alba (triticea, C.) 



• „ obtusa (pertenuis). 

 •Philine quadrata (formosa, St.) 



•Chiton cinereus. 



• „ mannoreufl» 



• „ ruber. 



• „ leevis. 



• „ asellus. 



• „ albus. 

 •Dentalium (entale, L.P) 

 PLepeta caeca (Candida, C.) 

 •Acmaea testudinalis (amoena, S.) 

 ♦Puncturella Noachina. 



♦Adeorbis djvisus ( = Skeneaserpuloides). 

 Margarita cinerea. 



• „ costulata? (Skenea). 



• „ helicina. 



•Margarita undulata. 



* „ alabastrum ( = occidentalis ?) 

 Littorina gioenlandica. 



* „ tenebrosa (vestita). 

 „ palliata? 



•Lacuna vincta (divaricata). 



* „ puteolus (Montagui). 

 •Skenea planorbis. 

 •Velutina laevigata. 



„ zonata. 

 •Lamellaria perspicua. 

 •Natica helicoides. 



„ clausa. 



* „ pusilla. 

 •Scalaria groenlandica. 



(lantbina communis). 



Odostomia producta. 



Cancellaria (admete) viridula. 

 •Trichotropis borealia. 

 *Fu3U8 antiquu3 (tomatus). 



* „ island, cus. 

 » „ propinquus. 



„ ? rosaceus. 

 •Trophon muricatus. 



* „ clathratus. 



„ scalariformis. 



„ harpularius. 

 •Purpura lapillus. 

 •Buccinum undatum. 



* „ (Cominella) Dalei. 

 •Bela turricula. 



* „ Tri^ve^yana. 



» „ rufa(Vahlii)? 



* Ommastrephcs sagittatus is also common to botli sides of the 

 North Atlantic. The genera, 



Macfuera, 

 Solemi/a, 



Gbjcimeris, 



Mesodesma {deauratum). 



Cardita, and 

 Crepidula, 



are peculiar to the American side of the Boreal Province. 



Several other species now living on the coast of the TJ. States 

 occur fossil in England : e. g, Trophon cinereus, Say., is believed 

 to be the Fusus Forhesi, Strickland, of the Isle of Man ; others 

 are marked in the Arctic list. 



III. Celtic Peovince. 



The Celtic province, as described by Prof. E. Forbes, includes 

 the British island coasts, Denmark, Southern Sweden, and the 

 Baltic* The fauna of this region (which includes the principal 



* The great work of Messrs. Forbes and Hanley is the standard text book oa 

 British Testacea. A new ■work on British Mollxisca is now being prepared by Mr. J. 



