52 FLORIDA GEOLOGICAL SURVEY I3TH ANNUAL REPORT 



This species was originally described from the Miocene of 

 South Carolina, although the exact locality was not known. It is 

 therefore interesting to again find it in typical form from the Well 

 at Okeechobee, at a depth of 41-56 feet. 



This is one of several species with the basal portions of the 

 chambers variously modified, which occur in the Miocene and Olig- 

 ocene of the Coastal Plain. 



I 



Tnincatiiliiia sp. 



Plate 3, figures i a, b. 



There is a large species of Truncatulina which occurs in the 

 Bushnell Well at depths of 1,067 and 1,095 ^^^^- Some of the 

 specimens are well preserved and show a raised ridge along the 

 line of coiling and raised borders to the chambers, the surface be- 

 tween punctuate. The ventral surface is strongly con\ex and pe- 

 culiarly marked. 



Genus Pulvinulina Parker and Jones, 1862. 

 Pulvinulina umbonata (Reuss). 



Rotalina umbonata Reuss, Zeitschr. deutsch. geol. Gesellsch., vol. 3, 1851, 

 p. 75, pl. 5, figs. 2Sa-c. 



Pulvinulina umbonata Reuss, Denkschr. Akad. "Wiss. Wien, vol. 25, 1866, 

 p. 206. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 695, pi. 

 105, figs. 2a-c. 



A single specimen which resembles this species in its general 

 characters was found in material from a depth of 200 feet in the 

 Ponce de Leon Well at St. Augustine. Florida. 



Pulvinulina sp. 



Pulvinulina hauerii H. B. Brady (not P. hauerii d'Orbigny) Rep. Voy. 

 Challenger, Zoology, vol. 9, 1884, pi. 106, fig. ya-c. 



There is a single specimen in the Jacksonville Well which is 

 close to the figure quoted above, which is, however, certainly not 

 Pidvinulina hauerii d'Orbigny. This particular form is at present 

 found in the Philippine and South Pacific regions and .is one of a 

 considerable number of species which occur in the Oligocene of 

 America and are now living in the same or closely related form 

 in the Indo Pacific. 



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