10 FAUNA OF NEW ENGLAND. 



Trachydermon ruber index (Balch). 



Tonicella ruber var. i7idex Balch, Nautilus, 1906, vol. 20, p. 66. 

 " Blue Hill Bay, [Maine]." 



Me.— Blue Hill Bay, 12 fathoms. 



MOPALIIDAE. 

 Plaxiphora atlantica (Verrill and Smith). 



Pilsbry, Manual Conch., 1892, ser. 1, vol. 14, p. 313, pi. 65, 

 iigs. 73-75; pi. 66, figs. 18-24. 



Placophora (EuplacopJiora) atlantica Verrill and Smith in Verrill, 

 Amer. Journ. Sci., 1882, ser. 3, vol. 24, p. 365. " off Nantucket, 

 640 fathoms." Verrill, Trans. Conn. Acad., 1884, vol. 6, p. 

 206, pi. 30, figs. 1-16. 



Mass.— OflF Nantucket Island, 122 fathoms. 



ACANTHOCHITIDAE. 

 *Amicula vestita (Broderip and Sowerby). 



Pilsbry, Manual Conch., 1893, ser. 1, vol. 15, p. 43, pi. 8, figs. 

 23-26. 



Chiton vcstitus Broderip and Sowerby, Zool. Journ., 1829, vol. 4, 

 p. 368. " OcEANO Arctico." 



Aviicula emersonii Gould, Inv. Mass., 1870, p. 264, fig. 527. 



Me. — Casco Bay; Frenchman's Bay. 

 Mass. — Massachusetts Bay, from fish. 



APLACOPHORA. 



CHAETODERMATIDAE. 



Chaetoderma nitidulum Loven. 



Loven, Ofvers. Kongl. Vet.-Akad. Forh., 1844, vol. 1, p. 116, 



pi. 2, " IN ARGILLA FUNDI 15-40 ORG. AD ORAS SUECIAE OCCIDEN- 



talis." Verrill, Proc. Amer. Assoc. Adv. Sci., 1874, vol. 22, 

 p. 347, pi. 6, fig. 6. 



Me.— Casco Bay, 48 to 64 fathoms (Verrill). 



