GASTEROPODA. 119 



Mass. — Massachusetts Bay; Vineyard Sound; Duxbury; Pro- 

 vincetown. 



R. I.— Watch Hill. 



Conn. — New Haven; Stratford. 



LITIOPIDAE. 

 *Litiopa bombix Kiener. 



Kiener, Ann. des Sci. Nat., 1833, vol. 30, p. 222, pi. 17, B, 

 figs. 1-3. No locality. Verrill, Trans. Conn. Acad., 1882, vol. 5, 

 p. 523. 



Litiopa melanostoma Sumner, Osburn, and Cole, Bull. U. S. 

 Bureau Fisheries, 1913, vol. 31, pt. 2, p. 720. 



Mass.— Off Marthas Vineyard. Pelagic, found attached to 

 floating gulf weed (Sargassum sp.). 



HOMALOGYRIDAE. 



*Homalogyra atomus (Philippi). 



Jeffreys, Brit. Conch., 1867, vol. 4, p. 69, pi. 1, fig. 5. 

 Truncatella atomus Philippi, Arch. f. Naturg., 1841, vol. 7, pt. 1, 

 p. 54, pi. 5, fig. 4. " IN SoRRENT [Italy]." 



N. H. — Hampton Beach (Morse). 



SKENEIDAE. 



*Skenea planorbis (Fabricius). 



Gould, Inv. Mass., 1870, p. 296, fig. 563. 



Turbo planorbis Fabricius, Fauna Groenlandica, 1780, p. 394. 

 [Greenland.] 



Me. — Common, Casco Bay to Eastport. 



Mass. — Cape Ann; Provincetown; Cohasset; Woods Hole. 



R. I.— Watch Hill. 



Conn. — Near New Haven. 



