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. 



Liviax hilamellaius Linne, Fauna Suecica, 1761, ed. 2, p. 508. 

 " Maris Norvegici." 



Doris hilamellaia 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 tcndla 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 Fucus-covered stone at East Boston Point,, 

 in April (Stimpson teste Gould). 



