382 TRANSACTIONS OF THE WAGNER FREE 



Phasianella afflnis C. B. Adams. 

 Phasianella affiiiis C. B. Adams, Contr. Conch., p. 67, 1850. 



Older Miocene of the Chipola beds, with the last species, living on the 

 coast of Honduras and in the Antilles, Simpson, Adams, etc. 



This species is in the same position as the last, and will probably be found 

 in the Pliocene at some future time, though it is possible that the influx of cold 

 water at the beginning of the Chesapeake or later Miocene drove the species 

 so far south that it never recovered its lost ground. It has not been found as 

 yet in the Florida Keys, and its most northern continental station yet reported 

 is on the coast of Honduras. The color-pattern is the same in both the recent 

 and fossil shells. 



Phasianella umbilicata Orbigny is found in the older Miocene of Bowden, 

 Jamaica, as well as in the recent fauna. P. compta Gould is reported from the 

 Post-Pliocene of the Pacific Coast. 



Family TURBINID^. 

 Genus TURBO Linne. 

 Section Senectus Swainson. 

 Turbo crenorugatus Heilprin. 

 T. crenortigatus Hp., Trans. Wagner Inst. i. p. 113, pi. 16, f. 54, 1S87. 



Orthaulax bed at Ballast Point, Tampa Bay, in the older Miocene, Will- 

 cox, Burns and Dall. 



This shell, from the descriptions, should be allied to T. dotninicensis Gabb, 

 a species of the same geological age described in 1873, but not figured, from 

 the Miocene of Santo Domingo. It must reach a much larger size than that 

 of the specimen described by Heilprin, since I have an operculum obtained by 

 Mr. Willcox which measures 31 mm. in greatest diameter. The operculum 

 is somewhat concave, showing more than six whorls on the inner side, and on 

 the outside is rather evenly convex, with a fine superficial granulation. 



Turbo castaneus Gmelin. 

 Turbo castaneus (Gmelin, 1788), Pilsbry, Man. Conch, x. p. 203, 1888. 



Pliocene marl of the Caloosahatchie River and Shell Creek, Florida, Dall 

 and Willcox; Post-Pliocene marl of Volusia Co., Fla., Wright; living on the 

 coast from Cape Hatteras, N. C, to Trinidad, West Indies, in various depths 

 from near 25 to 295 fathoms, U. S. Fish Commission, Hemphill, and others. 



Turbo castaneus var. crenulatus Gmel. 



This has the same range as the preceding in time, but is more commonly 

 found in shallo^yer water in the present seas, for the most part from low-water- 

 mark to 30 fathoms. 



This species varies in the Pliocene as it does in the present fauna. The 



