ON MOLLUSCA OF THE NORTH-EAST ATLANTIC, ETC. 



155 



Number of species enumerated : — 



Acephala, 275; Pteropoda, 14; Gasteropoda, 460: Total 750. 

 Number of species obtained in the most northern district (Finmark and Nordland) : — 



88 Acephala, 100 Gasteropoda ; total 188 species, of which 



160, were found as far south as North Drontheim. 



„ „ Scotland. 



„ „ British Channel. 



„ „ North of Spain. 



„ „ Portugal. 



„ „ S. of Spain & Mediterranean. 



„ „ Mogador. 



„ ,, Canary Islands. 



„ „ Madeira. 



Of 83 Acephala and 93 Gasteropoda =176 species from the coast of North Drontheim— 



77 Acephala and 80 Gasteropoda= 157 found as far south as Scotland. 



„ British Channel. 



„ North of Spain. 



„ Portugal. 



„ Mediterranean. 



„ Mogador. 



„ Canary Islands. 



„ Madeira. 



„ north as Nordland and Finmark. 



Of 117 Acephala, 1 Pteropod, and 142 Gasteropoda= 

 Scotland — 



: 260 species found on the coasts of 



97 Acephala, 103 Gasteropoda =200, extend south to the British Channel. 



„ North of Spain. 



„ Portugal. 



„ Mediterranean. 



„ Mogador. 



„ Canary Islands. 



„ Madeira. 



= 153 extend as far north as Drontheim. 



„ Nordland and Finmark. 



Of 122 Acephala, 136 Gasteropoda =258 species from the south coast of England — 



103 Acephala, 114 Gasteropoda =227, are found as far south as the North of Spain. 



„ Portugal. 



„ Mediterranean. 



„ Mogador. 



„ Canary Islands. 



„ Madeira, 



north as Scotland. 



„ Drontheim. 



„ Nordland and Finmark. 



Of 94 Acephala, 123 Gasteropoda = 21 7 from the north coast of Spain, including Vigo — 



88 Acephala, 95 Gasteropoda =183, are found as far south as Portugal. 



„ Mediterranean. 



„ Mogador. 



„ Canary Islands. 



,, Madeira, 



north as South of England. 



,, Scotland. 



„ North Drontheim. 



„ Nordland and Finmark. 



