INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 695 



yard and Buzzard's Bay, 20 to 25 fathoms, rare; Gasco Bay, 15 to 95 

 fathoms, Dot common ; Bay of Fandy, 10 to 100 fathoms, frequent. 

 Saint George's Bank (S. I. Smith, A. S. Packard). Gardiner's Bay, 5 

 fathoms, one specimen, (S. Smith). Off New London, Connecticut (T. 

 M. Prudden). Gulf of Saiut Lawrence (Whiteaves). Murray Bay 

 (Dawson). Nova Scotia (Willis). Labrador (Packard). Arctic*Ocean, 

 near Behriug's Straits, 30 fathoms, (Stimpson, N. P. Expl. Exp., 

 t. Gould). 

 Fossil in the Post-Pliocene of Canada (Dawson). 



Crenella aLANDULA Adams. Plate XXXI, fig. 233. (p. 418.) 



H. and A. Adams, Genera, vol. ii, p. 515, 1858; Gonld, Invert,, ed. ii, p. 194, fig. 

 492. Modiola (/Jandida Totten, American Journal Science, ser. i, vol. xxvi, 

 p. 367, figs. 3, e, f, g, 1834; Gould, Invert., ed. i, p. 131, fig. 87 (j^ars). Mytilus 

 decnssaius Stimpson, Shells of New England, p. 11, 1851, (non Montagu, sp.) ; 

 Dekay, op. cit., p. 186, Plate 22, fig. 248. 



Connecticut to Gulf of Saint Lawrence. Buzzard's Bay and Yiueyard 

 Sound, 5 to 15 fathoms, not uncommon ; off Gay Head, 19 fathoms, soft 

 mud; off Block Island, 29 fathoms, sandy mud; common in Massa- 

 chusetts Bay, Casco Bay, and Bay of Fundy, 3 to 60 fathoms. Halifax 

 (Willis). Gulf of Saint Lawrence, at Gaspe (Whiteaves). Gardiner's 

 Bay, Long Island (S. Smith). Stonington (Linsley). Off New London, 

 Connecticut (T. M. Prndden). Sandy Hook, Xew Jersey (Fergu- 

 son). Fossil in the Post-Pliocene at Montreal, Canada (Dawson). A 

 related species, C. cequilaterata Conrad (H. C. Lea, sp.) occurs in the 

 Miocene of Virginia. 



This species was undoubtedly confounded with G. decussata (Montagu, 

 sp.) b}^ both Gould and Stimpson. The genuine decussata is quite com- 

 mon in Casco Bay, Bay of Fundy, and Gulf of Saint Lawrence, and is 

 usually associated in those waters with C. glandula. It is a northern, 

 and common European species, and is also recorded from the North 

 Pacific coast of America by Dr. P. P. Carpenter. It also occurs in 

 Greenland (Morch). 



MONOMYARIA. 



Pecten mn&DiANS Lamarck. Plate XXXII, fig. 238. (p. 374.) 



Anira. sans Vert., ed. i, 1819 ; ed. ii, vol. vii, p. 143 ; Gould, Invert., ed. ii, p. 199, 

 fig. 496. Pecten conceniricus Say, Journ. Acad. Nat. Sci., Philad., vol. ii, p. 

 '259,1822; Gould, Invert., ed. i, p. 134, fig. 88; Dekay, op. cit., p. 172, f>late 9, 

 fig. 205. 



Florida and the northern shores of the Gulf of Mexico to Cape Cod ; 

 rare and local farther north in Massachusetts Bay ; and Kova Scotia 

 (Willis). Yery common in Vineyard Sound, Buzzard's Bay, shores of 

 Long Island and Connecticut, Kew Jersey, and southward. Tampa 

 Bay, Florida (Conrad, E. Jewett). Texas (Eoemer). 



Fossil in the Post-Pliocene of North Carolina and Tampa Bay, 

 Florida; in the Pliocene of South Carolina; and in the Miocene of 



