Chiton abyssorum Sars. 
— nagelfar Lov. 
Acanthochites fascieularis L. 
Lepidopleurus alveolus M. Sars. 
— cancellatus Sow. 
— arcticus n. Sp. 
— cinereus L. 
Lophyrus exaratus n. sp. 
— albus L. 
Craspedochilus marginatus Penn. 
Boreochiton ruber Lowe. 
— marmoreus Fabr. 
Callochiton laevis Penn. 
Patella vulgata L. 
Nacella pellucida L. 
Acmaea testudinalis Müll. 
Tectura virginea Müll. 
— rubella Fabr. 
Seutellina fulva Müll. 
Lepeta caeca Müll. 
Propilidium aneyloides Forbes 
Fissurisepta papillosa Seg. 
Puncturella noachina L. 
Emarginula fissura L. 
— crassa Sowb. 
Seissurella erispata Flem, 
Mölleria costulata Möll. 
Cyclostrema basistriatum Jefir. 
rugulosum Jeffr, 
— laevigatum Jeffr. 
trochoide Jeftr. ' 
areolatum n. sp. 
Margarita helieina Fabr. 
— groenlandica Chemn. 
— olivacea Brown 
— cinerea Couth. 
Machaeroplax obscura Couth. 
bella Verkr. 
albula Gould. 
varicosa Migh 
afinis Jeffr, 
89 
Gibbula eineraria L. 
— tumida Mtg. 
Trochus ziziphinus L. 
— oceidentalis Migh. 
Conulus millegranus Phil. 
Craspedotus Tinei Calcara. 
Pilidium radiatum. M. Sars, 
Capulus hungaricus L. 
Velutina laevigata Penn. 
— lanigera Möll. 
Morvillia undata Brown. 
Velutella flexilis Mtg. 
— eryptospira Midd. 
Lamellaria perspicua L. 
— Jlatens Müll, 
Marsenina prodita Lov. 
— micromphala Bergh. 
— groenlandica Möll, 
Onchidiopsis glacialis M. Sars. 
Trivia europaea Mtg. 
Ampullina Smithii Brown. 
Amauropsis islandica Gmel. 
Lunatia Montagui Payr. 
— intermedia Phil. 
— groenlandica Beck. 
— nana Möll, 
Natica elausa Brod. & Sow. 
— affinis Gmel. 
Torellia vestita Jeffr. 
Triehotropis borealis Brod. & Sow. 
— conica Möll. 
Littorina littorea Müll. 
— rudis Maton, 
— palliata Say. 
— obtusata L. 
Lacuna pallidula da Costa. 
— puteolus Turton. 
— divaricata Fabr. 
Hydrobia ulvae Penn. 
— minuta Totten. 
— ventrosa Mitg. 
