174 LITTORINID^. 



2. Lacuna pallidula. 



Cochlea pallidula, DaCosta, Brit. ConcTi. 1778 ; fide Jeffreys var. albescens 

 and var. patula, Thorpe, Brit. Mar. Conch. 1844. 



2 England ; ex c. G. Nevill, Esq. 



var. neritoidea, Gould. 



Lacuna neritoidea, Gould, Invert. Mass. 1841, " Chelsea Beach." 



3 Maine [United States] ; coll. Rev. E. R. Beadle. 



var. patula. 

 Lacuna patula, Thorpe, Brit. Mar. Conch. 1844. 



1 Falmouth; ex " Linnsea.'* 



3. Lacuna divaricata. 



Trochus divaricatus, Fahrieius, Fauna Groenland, 1780 [not Trochus 

 divaricatus of Lin.'] ; =zTurbo vinctus, Mtg. 1805 ; fide Jeffreys, var. 

 gracilior, Metcalfe. 



4 England ; ex c. G. Nevill, Esq. 



2 Prince Edward's Island j coll. A. Nevill, Esq. 



var. solidula. 

 Lacuna divaricata, var. solidula, Loven. 

 1 Greenland; ex " Linnsea." 



var. quadrifasciata. 



Turlo quadrifasciatus, Montagu, Test. Brit, Sup. 1805. 

 1 Long Island, United States ; coll. Rev. E. R. Beadle, 



var. can alls. 



Turlo canalis, Montagu, Test. Brit. 1805. 

 1 England ; ex c. G. Nevill, Esq. 



4, Lacuna crassior. 

 Turbo crassior, Montagu, Test. Brit. 1805. 



