ETC. 691 



fathoms (Smith, Packard). Fossil in the Post-Pliocene at Saco and 

 Portland, Maine (Packard); ? Canada (Dawson, as L. pernula, var). 



NucuLA PROXIMA Say. Plate XXX, fig. 230. (p. 418.) 



Journ. Acad. Nat. Sciences, Philad., vol. ii, p. 270, 18.22; Gould, Invert., ed. i, p. 

 103, tig. 63 ; ed. ii, p. 150, fig. 458. 



South Carolina to Gulf of Saint Lawrence. Common in Long Island 

 Sound, Buzzard's Bay, and Vineyard Sound, 2 to 19 fathoms; oft' Buz- 

 zard's Bay and Block Island, 25 to 29 fathoms; common in Massachu. 

 setts Bay, Casco Bay, and Bay of Fundy, 4 to 80 fathoms ; very abun- 

 dant in Trenton Bay, Mount Desert, Maine, 10 fathoms, soft mud. 

 i^ova Scotia (Willis). Saint George's Bank (S. L Smith). Fort Macon, 

 North Carolina (Cones). Long Island, abundant, (S. Smith). Fossil 

 in the Post Pliocene of Xortli and South Carolina; in the Pliocene of 

 South Carolina; and in the Miocene, of Maryland and South Carolina. 



IsTucuLA DELPHINODONTA Mighels. Plate XXX, fig. 229. (p. 509.) 



Boston Journal Nat. Hist., vol. iv, p. 40, Plate 4, fig. 5, 1842 ; Gould, Invert., ed. 

 ii, p. 153, tig. 461. JSfucula corticata Moller, Naturhistorisk Tidsskrift, vol. ivj 

 p. 90, 1842. ? Nucida radiata Dekay, Nat. Hist. New York, Moll., p. 179, Plate 

 12, tig. 216, 1843. 



Khode Island to Greenland. East of Block Island, 29 fathoms ; off 

 Gay Head, 19 fathoms, soft mud; Massachusetts Bay, common; Casco 

 Bay, 6 to 95 fathoms, common; Frenchman's Bay, Mount Desert, com- 

 mon; Bay of Fundy and Eastport Harbor, 10 to 100 fathoms, mud, 

 common ; Xova Scotia (Willis) ; Gulf of St. Lawrence (Whiteaves)- 

 Greenland (Moller, Morch). Xorthern Europe (t. Jeflreys), 



Wucula tenuis Turton (Montagu, sp.) 



Gould, Invert., ed. i., p. 105, fig. 64; ed. ii, p. 149, fig. 457. 



This species was recorded as from cod-stomachs, at Stonington, Con- 

 necticut, bat was not met with by us. Its occurrence south of Cape Cod 

 needs confirmation. It is an arctic species; common in Casco Bay and the 

 Bay of Fundy, in 10 to 100 fathoms, mud ; and northward to the Arctic 

 Ocean. Also on the northern coasts of Europe, south to Great Britain. 

 It is also found in the Post-Pliocene of Xew England and Canada. 



SCAPHARCA TRANSVERSA. Plate XXX, fig. 228. (p. 309.) 



H. and A. Adams, Genera, vol. ii, p. 538, 1858. Area transversa Say, Jour. Acad . 

 Nat. Sci., Philad., vol. ii, p. 269, 1822; Gould, Invert., ed. i, p. 96; ed. ii, p. 

 148, fig. 456a. 



Florida to Cape Cod. Long Island Sound, near Xew Haven, low-water 

 to 8 fathoms; Buzzard's Bay and Vineyard Sound, 2 to 10 fathoms; 

 Great Egg Harbor, New Jersey, 1 fathom. Xantucket (Gould). Long 

 Island, abundant; Greenport, 3 to 10 fathoms (S. Smith). Fort Macon, 

 I^orth Carolina (Cones). South Carolina (Kurtz). Georgia (Couper). 



