PELECYPODA. 19 



*Arca (Scapharca) transversa Say. 



Area transversa Say, Journ. Acad. Nat. Sci. Phila., 1822, ser. 1, 

 vol. 2, p. 269. " COAST OP the United States." Gould, Inv. 

 Mass., 1870, p. 148, fig. 456a. 



Mass. — Chatham; Buzzards Bay; Marthas Vineyard; Nan- 

 tucket; Wellfleet. 



R. I. — Narragansett Bay; Greenwich Bay; near Watch Hill. 

 Conn. — Off New London; New Haven; Stratford. 



Area (Bathyarca) pectunculoides Scacchi. 



Area peetuneuloides Scacchi, Test. Napolitani, 1832; Ann. Civ. 

 d. Sicil., 1836, vol. 6, p. 82. Verrill, Trans. Conn. Acad., 1882, 

 vol. 5, p. 573, pi. 44, figs. 5, 6. 



Me.— Off Casco Bay, 94 fathoms; Cashe's Ledge, 27 to 90 

 fathoms; Gulf of Maine, 110 to 150 fathoms. 



Mass.— Off Cape Cod, 92 to 122 fathoms; Georges Bank; south 

 of Marthas Vineyard, 76 to 506 fathoms. 



Area (Bathyarea) peetuneuloides septentrionalis G. O. Sars. 



Area pectunculoides var. septentrionalis G. O. Sars, Moll. Reg. 

 Arct. Norv., 1878, p. 43, pi. 4, fig. 2. " Hasvig [Norway.] " 



Mass.— South of Marthas Vineyard, 79 to 500 fathoms (Verrill). 



Area (Bathyarea) peetuneuloides frielei Friele. 



Area frielei Friele (ex Jeffreys MS.), Nyt Mag. f. Naturv., 1877, 

 vol. 23, pt. 3, p. 2. [North i\.TLANTic.] Jeffreys, Proc. Zool. 

 Soc. London, 1879, p. 573, pi. 45, figs. 4, 4a. 



^Irca pectunculoides var. frielei Verrill, Trans. Conn. Acad., 1882, 

 vol. 5, p. 574. 



Mass.— South of Marthas Vinevard, 100 to 487 fathoms. 



