INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. G81 



Florida (Conrad) ; Texas (Rojmer) ; Cuba (D'Orbigny). Fossil in 

 the Post-Plioceiie of Tirgiuia, South Carolina, and Florida; and 

 in tbe Pliocene of South Carolina. A similar form, if not identical 

 (P. Carolhiensis Conrad), occurs in the Miocene of South Carolina. 



A species scarcely to be distinguished from this was sent to me in 

 large numbers from La Paz, Gulf of California, by Captain Pedersen. 



Venus mergenaria Linne. Plate XXVI, fig. 184 (animal), (p. 359.) 



Systenia Naturte, ed. xii, p. ll:U, 17(57; Gjuld, Invert., ed. i, j). 8"), fig. 07; ed. 

 ii, p. 133, fig. 445. Merccnaria violacea Schnmacber, Essai d'un Noiiveau 

 Syst., p. 13.J, Plate 10, fig. 3, 1817 ; Adams, Genera, vol. ii, p. 419. Mercenaria 

 ■merccnaria Cheun, Man. Concb., vol. ii, p. 82, figs. 356-358, 1862. Crassh-cntts 

 mercenaria Perkins, Proc. Boston Soc. Nat. Hist., vol. xiii, p. 147, 1869. Venns 

 votata Say, Jouru. Acad. Nat. Sci., Pbiladelpbia, vol. ii, p. 271, 1822 (variety) ; 

 Gould, Invert., ed. i, i^. 87, fig. 67 ; ed. ii, p. 135, fig. 446. Venus prnjmrca 

 Say, op. cit., p. 271, 1822 ; Biuuey's Say, p. 95. 



Florida to Massachusetts Bay ; more rare and local farther north, at 

 Quahog Bay, Maine; E"ova Scotia (Willis) ; and in the southern part of 

 the Gulf of Saint Lawrence, to the Bay of Chaleur. It is not found on 

 the coast of Maine, east of Kennebeck Itiver, nor in the Bay of Fundy. 

 Very common in Vineyard Sound, Buzzard's Bay, Long Island Sound, 

 and southward. Fort Macon (Coues) ; South Carolina (Gibbes) ; 

 Georgia (Couper) ; Texas (Roemer). Fossil in the Post-Pliocene of Point 

 Shirley, Xantucket Island, Gardiner's Island, Virginia, and South Caro- 

 lina; in the Pliocene of South Carolina : and in the Miocene of Mary- 

 land, Virginia, North and South Carolina. 



Callista convexa Adams. Plate XXX, tig. 219. (p. 432.) 



II. and A. Adams, Genera, vol. ii, p. 425, 1858. Cytherea convexa Say, Journ. Acad_ 

 Nat. Sci., Pbil., vol. iv, p. 149, Plate 12, fig. 3, 1824 (fossil) ; Gould, Invert., ed. 

 i, p. 84, fig. 49 ; ed. ii, p. 131, fig. 444 (recent). Dione convexa Desbayes, Catal. 

 Concb. Biv., Britisb Museum, p. 71, 1853. Cjitherea morrhnana Linsley, Amer. 

 Jour. Sci., vol. xlviii, p. 276, 1845 (no description) ; Gould, op. cit., ser. ii, vol. 

 vi, p. 233, 1848 (young). Cytherea Sayana Conrad, Amer. Jour. Sci., ser. i, vol. 

 xsiii, p. 345, 1833 (recent) ; Fossils of tbe Medial Tertiary of tbe U. S., p. 13, Plate 

 7, fig. 3, 1838 (fossil). Cytherea iSayii Perkins, Proc, Boston Soc. Nat. Hist., 

 vol. xiii, p. 147, 1869. Callista (Caryatis) convexa Riimor ; Verrill, Amer. Jour. 

 Sci., vol. xlix, p. 277, Marcb, 1870. 



Xew Jersey to Gulf of Saint Lawrence. Fort Macon, Xorth Carolina, 

 dead valves on the beach, plenty, but perhaps fossil, (Cones, Yarrow). 

 Great Egg Harbor, Xew Jersey ; Long Island Sound; Vineyard Sound, 

 and Buzzard's Bay, 2 to 10 fathoms, mud, common ; Casco Bay, 3 to 

 8 fathoms, mud, adult, living; Eastport, Maine, rare. Xova Scotia 

 (Willis); Prince Edward's Island (Dawson). 



Fossil in the Post-Pliocene of Virginia and Xorth Carolimi ; in the 

 Pliocene of South Carolina; and in the Miocene of Maryland, Xorth 

 and South Carolina. 



The name Sayana given to this species in 1833 (loc. cit.) by Mr. Con- 



