68 FAUNA OF NEW ENGLAND. 



Montacuta bidentata Gould, Inv. Mass., 1841, p. 59. 

 K(^Uiopsis elevata Verrill and Bush, Proc. U. S. Nat. Mus., 1898, 

 vol. 20, p. 784, pi. 93, figs. 2^; pi. 94, figs. 7, 8. 



T^L\ss.— Revere; Wellfleet; Woods Hole; New Bedford Harbor ; 

 Duxbury. 



R. I. — Narragansett Bay, 8| to 10 fathoms. 

 Conn. — Savin Rock, near New Haven. 



CARDIIDAE. 

 *Cardiuin (Cerastoderma) ciliatum Fabricius. 



Cardium ciliatum Fabricius, Fauna Groenlandica, 1780, p. 410. 

 [Greenland.] 



Cardium pubescens Couthouy, Boston Jcurn. Nat. Hist., 1838, 

 vol. 2, p. 61, pi. 3, fig. 6. 



Cardium islandicum Gould, Inv. Mass., 1870, p. 139, fig. 450 

 {non Linne). 



Me. — Casco Bay; Frenchman's Bay, 20 to 30 fathoms; East- 

 port, 6 to 60 fathoms. 



Mass. — Marblehead Harbor, 7 fathoms; off Cape Cod, 35 

 fathoms; Duxbury, 20 fathoms. 



*Cardium (Cerastoderma) pinnulatum Conrad. 



Cardium pinnulatum Conrad, Journ. Acad. Nat. Sci. Phila., 

 1831, ser. 1, vol. 6, p. 260, pi. 11, fig. 8. "Massachusetts." 

 Gould, Inv. Mass., 1870, p. 141, fig. 452. 



Me to Conn. — Common, especially north of Cape Cod. 



*Cardium (Laevicardium) mortoni Conrad. 



Cardium mortoni Conrad, Journ. Acad. Nat. Sci. Phib., 1831, 

 ser. 1, vol. 6, p. 259, pi. 11, figs. 5-7. "northern coast [of 

 United States]." 



Liocardium mortoni Gould, Inv. Mass., 1870, p. 143, fig. 453. 



