I03 MOLIvUSCA OF THK GULF OF MEXICO 7 1 



Dall, Bull. 37, U. S. N. M., p. 56, '89 ; Dalland Simpson, 

 Bull. U. S. Fish Comm., i; p. 4S5, pi. 56, f. 3, 10, '01 ; 

 Dall, Proc. U. S. N. M., 26, p. 371, 1903. 

 Dione vene^^is Desha^^es, Cat. Conchifera Brit. Mus. , pt. i, 

 1853 ; Reeve, Conch. Icon., 12, Dione, pi. 6, f. 23, 1863. 

 Distribution. — Gulf of Mexico, Texas coast, to Colon and 

 Trinidad. T3"pe of subgenus Hysteroconcha Fischer. 



Genus CYTHEREA Bolten 

 listeri Gray, Analyst, 8, No. 24, 1838, (as Dosinia); Reeve, 

 Conch. Icon. 12, Venus, pi. 5, f. 14, '63 ; Dall, Proc. U. 

 S. N. M. , 26, p. 372, 1903. 

 Veyius crispata Dall, Bull. 37, U. S. N. M., p. 54, 1889. Not 

 of Desha3-es, 1853. 

 Distribution. — Gulf of Mexico to Santo Domingo, Tortola and 

 the Virgin Isls. Gulf coast. — West Florida. 



Genus ANTIGONA Schumacher 

 (Ventricola) rugatina Heilprin, Tr. Wagner Inst. Sci., i, p, 92, 

 pi. II, f. 24, 1887, (as Venus); Dall and Simpson, Bull. 

 U. S. Fish Com., i, p. 483, 1901 ; Dall, Proc. U. S. N. 

 M., 26, p. 372, '03 ; Tr. W. I. S., 3, p. 1277, '03. 

 rugosa var. rugatina Dall, Bull. 37, p. 54, '89. 

 Distribution. — Hatteras to Porto Rico, 26-84 f^is. Pliocene 

 to Recent. Gulf coast. — Tampa, Fla. Pliocene : Ca- 

 loosahatchie. 

 (Ventricola) callimorpha Dall, Proc. U. S. N. M., 26, pp. 372, 

 382, pi. 13, f. 6, 1903. 

 pilula Dall, B. M. C. Z., 9, p. 136, '81, (as Diplodonta); 

 Idem, 12, p. 274, pi. 8, f. 13, '86, (as Callocardia); Bull. 

 37, U. S. N. M., p. 54, '89, (as Venus). ^o\ pihda of 

 Reeve, 1863. 

 Distribution. — Gulf of Mexico (Dall, '89) to Barbados, 76- 

 300 fms. 



Genus CYCLINELLA Dall 

 tenuis Recluz 



Dosinia {Artemis) tenuis Recluz, Jour, de Conchy., 3, p. 



