FAUNA OF ORTHAULAX PUGNAX ZONE. 67 



definitely established that a diagnosis is not essential for the validity 

 of a generic name provided other conditions are fulfilled, I have 

 accepted the ruling of the International Committee, and adopt 

 Busycon. 



BUSYCON (SPINIGER var.?) TAMPAENSE Dall. 



Plate 10, fig. 5. 



Fulgur spiniger var. tampaense Dall, Trans. Wagner Inst., vol. 3, pt. 1, 

 p. Ill, 1890. 



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

 Heilprin, Willcox, Dall, and Burns. TJ. S. Nat. Mus. No. 165075. 



This is the common species of the silex beds though usually col- 

 lected in an immature state, the adults appearing only as fragments. 

 It is without doubt derived from the Vicksburgian B. spiniger of 

 Conrad. 



BUSYCON SPINIGER var. NODULATUM Conrad. 



Plate 9, fig. 5. 



Fulgur nodulatum Conrad, Journ. Acad. Nat. Sci. Phila., ser. 2, vol. 1, p. 207, 



1849 ; vol. 2, p. 41, pi. 1, figs 6, 7 ; Proc. Acad. Nat. Sci. Phila., vol. 6, 



p. 317, 1854. 

 Fulgur nodtdatus Gill, Amer. Journ. Conch., vol. 3, p. 147, 1867. 

 Busycon (Sycopsis) nodulatum Conrad, Amer. Journ. Conch., vol. 3, p. 184, 



1867. 

 Fulgur spiniger var. nodulatum Dall, Trans Wagner Inst., vol. 3, pt. 1, p. 



110, 1890. 



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

 Florida ; and of the marl of the Chipola Eiver, West Florida. Burns 

 and Dall. U. S. Nat. Mus. No. 165076. 



BUSYCON SPINIGER var. PERIZONATUM Dall. 



Fulgur spiniger var. perizonatum Dall, Trans. Wagner Inst., vol. 3, pt. 1, 



p. Ill, 1890. 

 Fulgur coronatum Heilprin, Trans. Wagner Inst., vol. 1, p. 108, 1887, not of 



Conrad, Bull. Nat. Inst., p. 187, 1849. 



Tampa silex beds, at Ballast Point, Tampa Bay, Florida; rare. 

 Heilprin, Burns. U. S. N. Mus. No. 112126. 



BUSYCON STELLATUM Dall. 

 Plate 10, figs. 7, 9. 



Fulgur stellatum, Dall, Trans. Wagner Inst., vol. 3. pt. 1, p. 114. pi. 4, 

 fig. 9, 1890. 

 Tampa silex beds, at Ballast Point, Tampa Bay, Florida; rare: 

 Dall. U. S. Nat. Mus. No. 165074. 



