FAUNA OF ORTHAULAX PUGNAX ZONE. 149 



Section LIROPHORA Conrad. 



Lirophora Conrad, Proe. Acad. Nat. Sci. Phila. for 1862, pp. 575, 586, 1863 ; 

 Venus athleta Conrad, Dall, Trans. Wagner Inst. vol. 3, pt 6, pp 1286 

 1293, 1903. 



CHIONE (LIROPHORA) BALLISTA Dal] 



Plate 25, fig. 3. 



Chione (Lirophora) ballista Dall, Trans. Wagner Inst., vol. 3. pt. 6, 

 p. 1295, pi. 55, fig. 23, 190.3. 



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

 Burns, and Dall. U. S. Nat. Mus. No. 165216. 



Section CHAIAELEA Morch. 



Chamelea Morch, Cat. Yoldi, vol. 2, p. 23, 1853. Venus gallina Linnaeus. 

 Dall, Trans. Wagner Inst., vol. 3, pp. 1289, 1300, 1903. 



CHIONE (CHAMELEA) NUCIFORMIS Heilprin. 



Plate 25, fig. 5. 



Cytherea nnoiformis Heilprin, Trans. Wagner Inst., vol. 1, p. 116, pi. 16, 



fig. 61, 1887. 

 Chione (Chamelea) nuciforrms Dall, Trans. Wagner Inst., vol. 3, pt. 6, 



p. 1300, pi. 55, fig. 9, 1903. 



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

 Heilprin, and Dall. U. S. Nat. Mus. No. 165215. 

 One of the more common species of the locality. 



CHIONE (CHAMELEA) SPADA Dall. 

 Plate 24, fig. 12. 



Chione (Chamelea) spada Dall, Trans. Wagner Inst., vol. 3, pt. 6, p. 1301, 

 pi. 55, fig. 13, 1903. 



Oligocene of the Tampa silex beds. Ballast Point, Tampa Bay 

 (Burns, Dall, and Crosby), and of Bailey's Mill Creek sink, Florida 

 (L. C. Johnson). U. S. Nat. Mus. No. 109240. 



This species is less common than the preceding one. 



CHIONE (CHAMELEA) RHODIA Dall. 



Plate 25, fig. 6. 



Chione (Chamelea) rhodia Dall, Trans. Wagner Inst., vol. 3, pt. 6. p. 1301. 

 pi. 55, fig. 10, 1903. 



Oligocene of the Tampa silex beds at Ballast Point, Tampa Bay, 

 and of the Oak Grove sands, Santa Eosa County, Florida. Dall 

 and Burns. U. S. Nat. Mus. No. 109229. This species, though with 

 a much greater range in time than the others, seems to be com- 

 paratively rare. 



