GASTEROPODA. 163 



Aeolis gymnota Gould, In v. Mass., 1870, p. 249, fig. 520 (ova),, 

 pi. 16, figs. 238-241. 



Mass.— Charles River, near Craigie's Bridge, Boston; Warren 

 Bridge, about the roots of Tubularia, Oct. and Nov., 1847 (Cou- 

 thouy); Woods Hole (Verrill); Cohasset, Nov. (Owen Bryant). 



Cratena pilata (Gould). 



Bergh, Syst. der Nud. Gaster., 1892, p. 31. 



Aeolis pilata Gould, Inv. Mass., 1870, p. 243, pi. 19, figs. 270, 

 277, 279, 281. " Charles River, [Mass.]." 



Aeolis vermiferus Smith, Ann. Lye. Nat. Hist. N. Y., 1870, vol. 9, 

 p. 391. 



Aeolidia pilata. and Montagua pilata Verrill, Rept. Inv. Vineyard 

 Sound, 1873, pp. 383, 666, pi. 25, fig. 174. 



Mass. — Charles River, in Sept., on timbers (Gould); Duxbury. 

 Conn. — New Haven Harbor, on piles of Long Wharf (Verrill) ; 

 Thimble Island, Long Island Sou'nd (Verrill). 



Cratena veronicae Verrill. 



Verrill, Proe. U. S. Nat. Mus., 1880, vol. 3, p. 389. " off Cape 

 Cod." 



Mass.— Off Cape Cod, in 23 to 31 fathoms, among hydro ids, 

 Sept. 6, 1879; Cohasset, Sept. 1906, on Laminariae (Owen Bry- 

 ant); Rocky Neck, Gloucester Harbor, Apr. 1908 (Balch). 



Cratena? pustulata (Alder and Hancock). 



Bergh, Malacol. Unters., 1878, vol. 15, p. 18. 



Eolis pustulata Alder and Hancock, Monogr. Brit. Nud. Moll., 

 1855, pt. 7, fam. 3, pi. 45, figs. 4, 5; pi. 47, fig. 22. " Culler- 

 coats, [England]." 



Eolis purpurea Stimpson, Smithson. Contr. Knowl., 1854, vol. 6,. 

 art. 5, p. 25. 



Aeolis purpurea Gould, In^^ Mass., 1870, p. 246. 



