[681] 1NVKKTKHKATK AMMALS or VINKYAK'D Sor.ND, ETC. 



Florida (Conrad); Texas (Uo-mor); Cuba, (I)'Oi -hi^n.vj. Fossil in 

 the Post-Pliocene of Virginia, South Carolina, and Florid;! : and 

 in the Pliocene of South Carolina, A similar form, i!' not, identical 

 (P. CfU'olinciixin 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 Pednscn. 



VENUS MEKCENARIA Liniie. Plate XXVI, fig. 184 (animal), (p. i 



Systenia Nutura', M\. xii, p. 1131,1767; Gould, Invert., ed. i, p. 85, li^. 07 ; i-il. 

 ii, p. 133, fig. 445. Mercenaria violacea Schumacher, Essai d'un Noim-sin 

 Syst., p. 135, Plato 10, fig. 3, 1817 ; Adams, Genera, vol. ii,p. 419. M<>-<-< nar'ui 

 mercenaria Chenu, Man. Couch., vol. ii, p. 82, figs. 356-358, 1862. Crnxx'/mm.- 

 mcrccuaria Perkins, Proc. Boston Soc. Nat. Hist., vol. xiii, p. 147, 1809. !'/// //.- 

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

 Gould, Invert., ed. i, p. 87, fig. 67 ; ed. ii, p. 135, fig. 446. Venux pro-pawn 

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



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

 Quahog Bay, Maine ; Nova 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 Eiver, nor in the Bay of Fnndy. 

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

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

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

 Shirley, Nautucket 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, ng. 219. (p. 432.) 



II. and A. Adams, Genera, vol. ii, p. 425, 1858. Cytherea convexa Say, Jouru. Acad. 

 Nat. Sci., Phil., 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 Deshayes, Catal. 

 Conch. Biv., British Museum, p. 71, 1853. Cytherea morrliuana Liusley, Amer. 

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

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

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

 7, fig. 3, 1838 (fossil). Cytherea Sayii Perkins, Proc., Boston Soc. Nat. I fist.. 

 vol. xiii, p. 147, 1889. CalUsta {Caryatl*} convexa Rumor ; Verrill, Amer. Jour. 

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



New Jersey to Gulf of Saint Lawrence, Fort Macon, North Carolina, 

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

 Great Egg Harbor, New 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. Nova Scotia 

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



Fossil in the Post-Pliocene of Virginia and North Carolina ; in the 

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

 and South Carolina. 



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



