FAUNA OF OETHAULAX PUGNAX ZONE. 97 



Genus SILIQUARIA Lamarck. 



Siliquaria Lamarck, Prodrome, 1799, p. 73. Type, Herpula anguina Lin- 

 naeus. 



SILIQUARIA VITIS Conrad. 



Siliquaria vitis Conrad, Foss. Tert. Form., ed. 1, pt. 3, p. 36, Aug., 1833; 



ed. 3, p. 47, pi. 17, fig. 3, 1845.— Dall, Trans. Wagner Inst., vol. 3, pt. 



2, p. 307, 1892. 

 Tenagoda vitis Conrad, Amer. Journ. Conch., vol. 1, p. 33, 1865. 



Eocene of the Claiborne sands. Oligocene of the Tampa silex beds, 

 Ballast Point, Florida, Dall. U. S. Nat. Mus. No. 165112. 



Family TUREITELLIDAE. 



Genus TURRITELLA Lamarck. 



Turritella Lamaeck, Prodrome, p. 74, 1799, Sole example, T. terebra Lin- 

 naeus. 

 Terebra (Anonymous) Mus. Calonnianum, 1797, not of Bruguiere 

 Aciilea Perry, Conch., 1811. 

 TurriteUus Montfort, 1810 

 Epitonium No. 2, Bolten, Mus. Boltenianum, p. 92, 1798. 



TURRITELLA TAMPAE Heilprin. 

 Plate 14, fig. 1. 



Turritella tampae Heilprin, Trans. Waguer Inst., vol. 1, p. 113, pi. 8, fig. 

 53, 1887.— Dall, Trans. Wagner Inst., vol. 3, pt. 2, p. 309, pi. 17, fig. 8, 

 1892. 



Tampa silex beds at Ballast Point, Tampa Bay, Florida, Willcox 

 Shepard, and Dall. U. S. Nat. Mus. No. 165119. 



The almost microscopic spiral threads with which the entire sur- 

 face is covered are not attempted to be shown on the figure givesi. 



TURRITELLA TAMPAE var. TRIPARTITA Dall. 



Plate 5, fig. 1. 



Turritella tampae var. tripartita Daxl, Trans. Wagner Inst., vol. 3, pt. 2, 

 p. 309, 1892. 



Tampa silex beds at Ballast Point, Tampa Bay, Florida, Dall. 

 U. S. Nat. Mus. No. 112588. 



This variety has the equatorial constriction marginate on both 

 sides by a primary cord, with one marginating the suture behind; 

 the other primaries obsolete, the fine spiral striation remaining. The 

 surface of the whorl is thus divided into three equal striated bands, 

 separated by two prominent threads. 



Two specimens of this variety were found among the numerous 

 Turritellae collected from the Ballast Point beds. 

 54907°— Bull. 90—15 7 



