AMPHINEURA. 9 



Tonicella blaneyi Dall. 



Dall, Proc. Biol. Soc. Wash., 1905, vol. 18, p. 203. "off 

 Ironbound Island, Frenchmans Bay, * * * Maine." Dall, Nau- 

 tilus, 1905, vol. 19, p. 88, pi. 4. 



Me. — Frenchman's Bay, off Ironbound Island, in 20 fathoms. 



* Trachydermon albus (Linne). 



Pilsbry, Manual Conch., 1893, ser. 1, vol. 15, p. 64. 



Chiton albus Linne, Syst. Nat., ed. 12, 1767, vol. 1, p. 1107. 

 " O. islandico." 



Ischnochiton {Trachydermon) albus Pilsbry, Manual Conch., 

 1892, ser. 1, vol. 14, p. 70, pi. 7, figs. 35-38. 



Me. — Casco Bay; Frenchman's Bay, 6 to 10 fathoms; East- 

 port. 



N. H.— Isles of Shoals. 

 Mass. 



Trachydermon exaratus (G. O. Sars). 



Verrill, Trans. Conn. Acad., 1884, vol. 6, p. 208, pi. 30, figs. 2-26. 

 Lophyrus exaratus G. O. Sars, Moll. Reg. Arct. Norv., 1878, p. 

 113, pi. 8, fig. 1. "BoD0." 



Mass.— Off Marthas Vineyard, 101 to 192 fathoms. 



* Trachydermon ruber (Linne). 



Chiton ruber Linne, Syst. Nat., ed. 12, 1767, vol. 1, p. 1107. 



" OCEANO SEPTENTRIONALI." 



.Ischnochiton {Trachydermon) ruber Pilsbry, Manual Conch. ^ 

 1892, ser. 1, vol. 14, p. 80, pi. 7, figs. 50-56. 



Me. — Casco Bay; Frenchman's Bay; Eastport. 

 Mass. — Revere; Swampscott. 

 R. I.— Off Watch Hill, 5 fathoms. 

 Conn. — Off New London, 8 fathoms. 



