84 Journal of the Mitchell Society l_August 



Genus Macoma Leach, 1819. 



Macoma tenta (Say). 



? Psammobia lusoria Say, Journ. Acad. Nat. Sci. Phila., vol. 2, p. 304, 

 1822; not of Conrad, 1840. 



Tellina tenta Say, Am. Conch., pi. 65, fig. 3, 1834. 



Macoma tenta, Dall, Bull. 37, U. S. Nat. Mus., p. 60, pi. 56, fig. 10, 1889; 

 Dall, Trans. Wagner Inst. Sci., vol. 3, pt. 5, p. 1049, IQOO- 



Collecting ground : Dredging in Bogue Sound. Material not 

 known to be abundant. 



FAMILY PETRICOLID^. 

 Genus Petricola Lamarck, 1801. 



Petricola (Rupellaria) typica (Jonas). 



Choristodon typicum Jonas, Zeitschr. Mai., i., p. 185 ; Beitr. MoUuskol., 

 p. I, pi. 7, fig- 3, 1844- 



Petricola (Choristodon) robusta, Dall, Bull. 37, U. S. Nat. Mus., p. 58, 

 1889; not of Sowerby. 



Petricola (Rupellaria) typica, Dall, Trans. Wagner Inst. Sci., vol. 3, 

 pt. 5, P- 1059, 1900. 



Collecting ground at railroad pier, Morehead City. 



Petricola (Petricolaria) pholadiformis Lamarck. 



Petricola pholadiformis Lamarck, An. sans Vert., v., p. 505, 1818; 

 Dall, Bull. 37, U. S. Nat. Mus., p. 58, pi. 59, fig. 15, pi 64, fig. 140a, 1889. 



Petricola (Petricolaria) pholadiformis, Dall, Trans. Wagner Inst. Sci., 

 vol. 3, pt. 5, p. 1061, 1900. 



The animal is found in the mud (or turf) in the vicinity of 

 the jetties at Fort Macon; also about the western end of Town 

 Marsh. It lives near the surface between tide marks. It is also 

 found in rocks at the railroad pier at Morehead City. 



Petricola dactylus Sowerby. 



Petricola dactylus Sowerby, Genera, Petricola, fig. 3, 1823. 

 Petricola pholadiformis var. dactylus, Dall, Bull- 37, U. S. Nat. Mus., 

 p. 58, 1889. 



Specimens are found at the railroad pier at Morehead City. 

 The species is probably more widely distributed in the vicinity. 



