of the Coasts of Nordland and Finmark. 200 



Lima subaurioulata. Astarte sulcata. 



Mytilus edulis. cUijjtica. 



Modiola modiolus. arctica. 



Creuella decussata. compressa. 



discors. • Venus striatula. 



nigra. ovata. 



niarmorata. Mactra cUiptica. 



Area nodulosa. Telliua solidula. 



Nucida nucleus. fabula. 



tenuis. Psamniobia feiToensis. 



Leda caudata. telliuella. 



lucida. Syndosmja alba. 



Cardium echinatum. prismatica. 



edule. intermedia. 



fasciatum. Solen pellucidus. 



nodosum. Mya truucata. 



Lucina borealis. arenaria. 



tlexuosa. Corbula nucleus. 



Artemis exoleta. Saxicava aictica. 



lincta. Thracia convexa. 



Kellia suborbicularis. phaseolina. 



Montacuta substriata. Periploma praetenuis. 



Cyprina islandica. Lyonsia arenosa. 



Coralline Zone. 



This region is very rich in IMollusca, and many of the rarest 

 northern shells were obtained from it. The most common and 

 generally distributed shells are, Trophon Gunneri, Pleurotoma 

 nivale, Cerithium metula, Scalaria grcenlandica, Trochus mille- 

 granus, Margarita alahastrum and cinerea, Patella caeca, Pilidium 

 fulvum. Chiton asellus, Cylichna cylindracea, Terehratula cranium, 

 Terebratulina caput-serpentis. Crania anomala, Pecten islandicus 

 and striatus, Modiola pjliaseolina, Crenella nigra, Nucula iiucleus 

 and tenuis, Astarte crebricostata and elliptica. Echinodermata 

 are not so abundant as in the next zone, but several species are 

 common, among which are Echinus miliaris, Amphidetiis ovatus, 

 Schizaster fragilis, Astropecten Miilleri, Luidia fragilissima, 

 Amphiura filiformis, and Ophiopholis aculeata. 



Testacea of the Coralline Zone. 

 Gasteropoda. 



Cancellaria viridula. Bela turricula. 



Trichotropis borealis. rufa. 



Fusus antiquus. Trevelliana. 



Tropbon elathratus. Defrancia linearis. 



Gunneri. pjTamidalis. 



Buccinum undatum. Natica nitida. 



Humpbreysianum. Montagui. 



fusiforme. helicoides. 



Nassa incrassata. pusilla. 



Pleurotoma nivale. clausa. 



