58 FLORIDA GEOLOGICAL SURVEY I3TH ANNUAL REPORT 



Genus Amphistegina d'Orbigny, 1826. 



Amphistegina, lessonii d'Orbigny. 



Amphistegina lessonii d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 304, No. 

 3, pi. 17, figs. 1-4, ]\Iodeles, 1826, No. 98. H. B. Brady, Rep. Voy. Challenger, 

 Zoology, vol. 9, 1884, p. 740, pi. Ill, figs. 1-7. Cushman, Bull. 676, U. S. Geol. 

 Survey, 1918, pp. 20. 70. 'pi. 4, fig. 3; pi. 26, fig. 5; pi. 27, fig. 3; pi. 28, fig. 

 i; Bull. 103, U. S. Nat. Mus., 1918, p. 77; Publ. 291, Carnegie Institution of 

 Washington, 1919, p. 50, pi. 7, fig. 7. 



There are various forms, varieties, or species of Amphistegina 

 'in the American Tertiary which should be critically studied as from 

 the fragmentary evidence at hand they seem very distinct at dif- 

 ferent horizons. 



As Amphistegina is a tropical genus the occurrence in the wells 

 would naturally be expected to be confined to those of the southern 

 part of Florida. This is true of the actual records, it having oc- 

 curred as follows : City Well at Fort Myers at 300 feet ; well of 

 the Okeechobee Ice and Electric Company at Okeechobee at 56-62 

 feet; and in the well of the Florida East Coast Railway at Mara- 

 thon on Key Vaca, at 180 feet. 



It is know from the Miocene of the Duplin ]\Iarl of South Caro- 

 lina, the Choctawhatchee ]\Iarl of Florida, and the Miocene of 

 Santo Domingo and Bowden. Jamaica,, and in the upper Oligo- 

 cene of the Panama Canal Zone. 



Genus Asterigerina d'Orbigny, 1839. 



Asterigerina angulata Cushman. 



Asterigerina angulata Cushman, Publ. 291, Carnegie Institution of Wash- 

 ington. 1919, p. 45- pl- 13. fig- I. 



Numerous specimens from a depth of 786 feet in the well at 

 Marathon. Key Vaca. are evidently this species, described from 

 the Miocene of Santo Domingo at Rio Cana, and Cercado de Mao. 



Genus Nummulifes Lamarck. 1801. 



Nummulifes sp. 



Numerous specimens of Nnnunnlite?, occur in a number of the 

 wells, usuallv just below the Ocala limestone where that formation 

 is represented. The records in the various Florida wells are as 

 follows: a fragment probably Nnmmulites from 400-470 feet in 



