PELECYPODA. 79 



Panomya arctica (Lamarck). 



Iredale, Proc. Mai. Soc. London, 1915, vol. 11, p. 341. 



Glycimeris arctica Lamarck, Hist. Nat. Anim. sans Vert., 1818, 

 vol. 5, p. 458. " l'Ocean arctique, la Mer blanche." 



My a norvegica Spengler, Skriv. Nat.-Selsk. Kjobenhavn, 1793, 

 vol. 3, pt. 1, p. 46, pi. 2, fig. 18 {non Gmelin, 1790). 



Panopaea arctica Gould, Inv. Mass., 1870, p. 51, fig. 373. 



Me.— Off Casco Bay, 115 fathoms; Frenchman's Bay, 25 to 

 30 fathoms; Eastport, 40 fathoms. Georges Bank. 



PHOLADIDAE. 

 *Barnea costata (Linne). 



Pholas costatus Linne, Syst. Nat., ed. 10, 1758, vol. 1, p. 669, 



" EUROPAE AUSTRALIS." 



Barnea (Scobina) costata Dall, Trans. Wagner Free Inst. Sci., 

 1898, vol. 3, pt. 4, p. 816. 



Pholas costata Gould, Inv. Mass., 1870, p. 36, fig. 363. 



Mass. — New Bedford; Woods Hole; Marthas Vineyard. 

 Conn. — Long Island Sound. 



*Barnea truncata (Say). 



Dall, Trans. Wagner Free Inst. Sci., 1898, vol. 3, pt. 4, p. 816. 



Pholas truncata Say, Journ. Acad. Nat. Sci. Phila., 1822, ser. 1,. 

 vol. 2, p. 321. " SOUTHERN COAST [oF United States]." Gould, 

 Inv. Mass., 1870, p. 38, fig. 364. 



Me. — Scarboro (Roper). 



Mass. — Salem Harbor (Morse); Plevere; Vineyard Sound; 

 New Bedford; Duxbury. 

 R. I.— Bristol. 

 Conn. — Near New Haven. 



