106 DB. GWTN JEFJfBEYS OK 



Circumpolar, and North-east America. 



PUNCTURELLA NOACHINA, L. 



Yamada Harbour, 7 fathoms. 



Circumpolar, and North-east America. * Pore' exp. 66-1095 

 fathoms. 



Tbochus varicosus, Mighels ^ Adams. 



= Margarita elegantissima, Bean. 



= M. plicata, Sars. 



= M. polaris, Danielssen. 



A single specimen from 48 fathoms. 



Spitzbergen (Torell)-, Graspe Bay, Gulf of St. Lawrence 

 ( Whiteaves) ; New Brunswick, Newfoundland, and Nova Scotia 

 {Migliels Sf Adams, Willis, and Stitjipson) ; Norway {Sars, Koren, 

 and Danielssen). Fossil in the Bridlington Grlacial bed {Bean). 



Lacuna divaricata, Fabr.; var. ecaniculata. 

 A single specimen from 7 fathoms. 



Northern Europe, Asia, and America, The absence of a canal 

 is also noticeable in every other British species of Lacuna. 



LiTTORiNA Rums, MatoH. 



A single dead specimen from 7 fathoms, probably carried out 

 by the tide or voided by a fish. 



North Atlantic, Mediterranean, and North Pacific. 



Menestho albula, Fabr. 

 Several specimens. 

 Spitzbergen and Greenland. 



Nattca affinis, Gm. 

 = N. clausa, Broderip ^ Sowerby. 

 Three specimens. 



North of Europe, Asia, and America. ' Pore' exp. 203-664 

 fathoms. 



N. Grcenlandica, Ch. 



Endermo ; Teso, 3 fathoms. 



Same range as last species. ' Pore' exp. 173-725 fathoms. 

 Admete viridula, Fabr. 



A single specimen from 48 fathoms. 



Spitzbergen (Torell) ; Norway, Greenland, and N.E. America. 

 ' Pore' exp. 114-420 fathoms. 



Purpura lapillus, L. 

 Shore to 4 fathoms. 



