GASTEROPODA. 175 



*Laniellidoris bilamellata (Linne). 



Bergh, Semper's Reisen Archipel d. Philippinen, pt. 2, 1878, 

 vol. 2, no. 14, p. 606, pi. 64, fig. 13; pi. 65, figs. 1-5. 



Limax bilamellatus Linne, Fauna Suecica, 1761, ed. 2, p. 508. 

 " Maris Norvegici." 



Doris bilanieUata Gould, Inv. Mass., 1870, p. 228, pi. 20, figs. 

 285, 286; pi. 21, figs. 299, 305-309. 



Mass. — Under a floating log at East Boston, May, 1849 (Gould) ; 

 Beverly, June (Agassiz); Boston Harbor near Governor's Id., 4 

 fathoms. May, 1853 (Stimpson); Castle Id., Boston Harbor, 

 May, 1915 (Humphrey). 



Lamellidoris (?) tenella (Gould). 



Bergh, Syst. der Nud. Gaster., 1892, p. 161. 



Doris tenella Gould, Inv. Mass., 1870, p. 229, pi. 20, figs. 289, 

 290, 293. " Beverly, [Mass.]." 



Onchidoris tenella Verrill, Amer. Journ. Sci., 1870, ser. 2, vol. 50, 

 p. 407. 



Me.— Near Eastport, low-water mark, 1870 (Verrill). 

 Mass. — Beverly, February, 1848 (Agassiz). 



Lamellidoris (?) grisea (Gould). 



Bergh, Syst. der Nud. Gaster., 1892, p. 161. 



Doris grisea (Stimpson MS.) Gould, Inv. Mass., 1870, p. 232, 

 pi. 20, figs. 292, 295. '' Charles River * * * Chelsea Beach * * * 

 East Boston Point, [Mass.]." 



Onchidoris grisea Verrill, Amer. Journ. Sci., 1870, ser. 2, vol. 50, 

 p. 407. 



Me. — Near Eastport, in a pool at low-water mark (Verrill). 



Mass.— On floating Zostera in Charles River, November 9, 1842 ; 

 also on the under side of Fueus-covered stone at East Boston Point,, 

 in April (Stimpson teste Gould). 



