142 MOLLITSCA OF THE GULF OF MEXICO 112 



Curricula Dall, Proc, U. S. N. M., 46, p. 235, pi. 22. f. 9, 1914. 



Distribution. — Upper Miocene or Pliocene. Well near Al- 

 exandria, La., at 49 feet. Brackish water formation. 



milium Dall, Proc. U. S. N. M., 46, p. 235, pi. 22, f. 2, 1914. 



Distribution. — Upper Miocene or Pliocene,. Well near Al- 

 exandria, L/3.., at 49 feet. 



Genus ASSU^INEA Leach 



auberiana d'Orbigny, Moll. Cuba, 2, p. 8, pi. 10, f. 6, 7, 1842, 

 (as Paludes^rma) ; Ball, Pr. U. S. N. M., 6, p. 335, 1883; 

 Bull. 37, U. S. N. M., p. 150, '89; Tr. W. L S. 3, P- 347. 

 1892. 



Distribution. — Cedar Keys, West Florida, and the Antilles. 

 Pliocene, Caloosahatchie and Shell Creek, West Fla. 



Genus TRUNCATELLA Risso 



caribaeensis Sowerby (MSS.); Reeve, Conch. Syst. 2, pi. 182, f. 

 7, 1842; Binuey, Land & Fr- Water Shells, N. A. Smith. 

 Misc. Coll., No. 144, pt. 3, p. 98, pi. 198, 1S65; Dall, Bull. 

 37, U. S. N. M., p. 152, '89; Dall & Simpson, Bull. U. S. 

 Fi.sh Com., i, p. 436, pi. 53, f. 7, 1901. 



Distribution. — West Florida, Alabama, Texas (?) and Mex- 

 ico. Also Greater Antilles. 



bilabiata Pfeiffer, Wiegm. Arch., i, p. 253, 1840; Binny, L. and 

 Fr. W. Sh. N. A., pt. 3, p. 99, f. 199, 1865; Dall, Bull. 37, 

 U. S. N. M.. p. 152, '89. 



Distribution, — Sarasota, W^est Florida, to Honduras and 

 Cuba. 



pulchella Pfeiffer, Wiegm. Arch., i,p. 356, 1839; Binney, L. and 

 Fr. W. Sh. N. A., pt, 3, p. 99, f. 200. 1865; Dall, Bull. 37, 

 U. S. N. M. p. 152, '89; Dall & Simpson, Bull. U. S. Fish 

 Com., I, p. 436, 1 90 1. 

 Distribution.— Florida to St. Thomas, W. L Gulf coast: 



