19121 Distribution of Bivalves of Beaufoet^ N. C. 77 



found recently near Gallants Point across the channel leading 

 from the inland waterway to Beaufort, and it probably occurs 

 on sandy shoals throughout the vicinity. It is easily obtained 

 at low water, living in sand near the surface. Collected on 

 Shark Shoal, 1912. 



FAMILY NUCULIDiE. 

 Genus Nucula Lamarck, 1799. 



Nucula proxima Say. 



Nucula proxima Say, Journ. Acad. Nat. Sci. Phila., vol. 2, p. 270, 1822 ; 

 Dall, Bull. 37, U. S. Nat. Mus., p. 42, pi. 56, fig. 4, 1889; Ball, Trans. 

 Wagner Inst- Sci., vol. 3, pt. 4, p. 574, 1898. 



Little attention has been given to the collection of living speci- 

 mens. Live animals have been dredged, during 1912, near the 

 eastern end of Bogue Sound, and dead valves are found in other 

 localities. It is believed that careful search would yield abund- 

 ant material. 



FAMILY ARCID^. 



Genus Area (Linnaeus) Lamarck, 1799. 

 Subgenus Noetia Gray, 1840. 



Area (Noetia) ponderosa Say. 



Area ponderosa Say, Journ. Acad. Nat. Sci. Phila., vol. 2, p. 267, 1822. 



Area (Noetia) ponderosa, Dall, Bull. 37, U. S. Nat. Mus., p. 40, 1889; 

 Dall, Trans. Wagner Inst. Sci., vol. 3, pt. 4, p. 633, 1898. 



Of the several species of this genus which belong to the Beau- 

 fort fauna this is the most abundant. It is a large form and may 

 be readily obtained at any time. It lives a few inches below the 

 surface of the ground, in firm sand or mud. One specific col- 

 lecting ground is the shoals west of the laboratory. 



Subgenus Scapharca (Gray) DalL 



Area (Scapharca) transversa Say. 



Area transversa Say, Journ. Acad. Nat. Sci. Phila., vol. 2, p. 269, 1822; 

 Dall, Bull. 37, U. S. Nat- Mus., p. 40, pi. 56, fig. 2, 1889. 



Scapharca (Scapharca) transversa, Dall, Trans. Wagner Inst. Sci., 

 Tol. 3, pt. 4, p. 645, 1898. 



