GASTEROPODA. 175 



*Lainellidoris 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 hilamellatus Linne, Fauna Suecica, 1761, ed. 2, p. 508. 

 " Maris Norvegici." 



Doris bilamellata 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 lov .;water mark (Verrill). 



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

 also on the under side of Fucus-covered s'tone at East Boston Point, 

 in April (Stimpson teste Gould). 



