14 NEW YORK STATE MUSEUM 



Littorina rudis Donovan 



Littorina rudis Donov. DeKay, Nat. Hist. N. Y. 1843. P- IO 4 

 Littorina rudis Donov. Smith & Prime, An. Lye. N. Y. 1870. 



9:392 

 Littorina rudis Donov. Tryon, Man. Conch. 1887. 9:241 



Littorina rudis obligata Say 



Littorina ru d is v. o bl iga ta Say. Tryon, Man. Conch. 1887. 

 9:241 



Littorina rudis tenebrosa Montagu 



Littorina tenebrosa Mont. DeKay, Nat. Hist. N. Y. 1843. P- IO 5 

 Littorina tenebrosa Mont. Jay, Cat. 1852. p.3ii 

 Littorina rudis v. tenebrosa Mont. Tryon, Man. Conch. 1887. 

 9:242 



Littorina littorea Linnaeus 

 Littorina littorea Linn. Tryon, Man. Conch. 1887. 9:240 



Littorina palliata Say 



Littorina palliata Say. DeKay, Nat. Hist. N. Y. 1843. p.io6 

 Littorina palliata Say. Jay, Cat. 1852. p. 131 

 Lit torin a lit toral i s Linn. Smith & Prime, An. Lye. N. Y. 1870. 



9 : 393 

 Littorina littoral is Linn. Tryon, Man. Conch. 1887. 9:242 



Genus LACUNA Turton 

 Lacuna divaricata Fabricius 



Lacuna vincta Mont. DeKay, Nat. Hist. N. Y. 1843. p.m 

 Lacuna pertusa Conr. Jay, Cat. 1852. p. 312 

 Lacuna vincta Turt. Smith & Prime, An. Lye. N. Y. 1870. 9:393 

 Lacuna divaricata Fab. Tryon, Man. Conch. 1887. 9:266 



Family CERITHIIDAE^ 



Genus BITTIUM Leach 

 Bittium nigrum Totten 



Cerithium sayi Gld. DeKay, Nat. Hist. N. Y. 1843. p. 128 

 Cerithiumsayi Mke. Smith & Prime, An. Lye. N. Y. 1870. 9:394 

 Bittium nigrum Tott. Tryon, Man. Conch. 1887. 9:152 



Genus CERITHIOPSIS Forbes & Hanley 

 Cerithiopsis greeni C. B. Adams 

 Cerithium greenii Ads. Smith & Prime, An. Lye. N. Y. 1870. 



9 : 394 

 Cerithiopsis greenii Ads. Tryon, Man. Conch. 1887. 9:170 



