FORAMINIFERA FROM DEEP WELLS 53 



Piilviiiulina ? sp. 

 Plate 2, figures 7 a, b. 



Associated with the conical OrbitoUna in three wells there is 

 a species which may be assigned to PidvinuUna. It is of small 

 size, the dorsal side strongly convex, the ventral side less so, and 

 when worn shows a peculiar series of openings about the umbili- 

 cal area. 



It is found in material from the following: New City Well 

 at Jacksonville, at 820-845 feet; Ponce de Leon \Nt\\ at St. Au- 

 gustine at 785 feet; and City Well at Apopka, Orange County, at 

 115 feet. 



This is another one of the species which is characteristic of the 

 fauna of the upper OrbitoUna Zone. 



Genus Gypsina Carter, 1877. 

 Gypsina globulus (Reuss). 

 Ceriopora globulus Reuss, Haidinger's Nat. Abh., vol. 2, 1847, p. 33, pi. 



5. fig- 7. 



Gypsina globulus H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 



1884, p. 717, pi. Id, fig. 8. Cushman, Publ. 291, Carnegie Institution of 



Washington, 1919, p. 44, pi. 4, fig. 7. , • 



Large specimens which may be referred to this species are 

 from the well at Marathon, on Key Vaca, at 598 feet. These are 

 similar to those which were found at Anguilla, Leeward Islands, 

 where, as in the Marathon Well, they occurred in company with 

 Orbit olites. 



Smaller specimens of the form which is characteristic of the 

 Ocala limestone were found in the Jacksonville Well, at 680-702 

 feet, and occasionally below. These all probably came from the 

 level of 510-550 feet where the Ocala evidently is entered and 

 from which point downward there is no casing. Similar speci- 

 mens also occur in the well of the Bonheur Development Com- 

 pany at Burns, A\'akulla County, at a depth of 50 feet, and in the 

 well of the Compagnie Generale des Phos. de la Floride, at An- 

 thony, Marion County, also at 50 feet. This latter well is known 

 to start in the Ocala limestone. Other species from Burns con- 

 firm the occurrence of the Ocala at 50 feet as indicated by the 

 Gypsina. 



