6o FLORIDA GEOLOGICAL SURVEY-13THl ANNUAL REPORT

 The only well from which specimens of this genus were found is that at Marathon on Key Vaca, where they occurred at a depth of 852 feet. It would then seem that the well at this depth entered or was in Upper Oligocene strata.
 This genus may prove to be a synonym of Miogypsina which is also characteristic of the Upper Oligocene elsewhere.

 Genus Lepidocyclina Gumbel, 1868.
 Lepidocyclina ocalana Cushman.
 This species which is typical of the Ocala limestone of Florida is found in recognizable form in the several wells: Jacksonville, first appearing at 510-550 feet, and fragments occur from this point downward, probably all having 'their source at this same depth as the well is not cased below this level. In the well of L. E. Morrow at Sanford, Seminole County, at 113 feet, specimens of L. ocalana occur in fragmentary form with other Ocala species. At Cocoa, Brevard County, from the well of H. Bradford, the species occurs in the only sample from 190 feet. In Tiger Bay well at 360-400 feet abundant specimens of Lepidocyclina, including 'L. ocalana, were found.
 The Ocala limestone is therefore definitely placed by this and associated species.
 Lepidocyclina floridana Cushman.
 This'species occurs with L. occlana in the following wells: L. E. 'Morrow, Sanford, Seminole County, at 113 feet; H. Bradford, Cocoa, Brevard County, 190 feet, and at Tiger Bay, 360400 feet and at various points below, evidently originating from this level.
 Lepidocyclina pseudocarinata Cushman.
 There are specimens of this species from two of the wells with the preceding: Cocoa, 190 feet, and at Tiger Bay, 360-400 feet.

 Lepidocyclina pseudomarginata Cushman.
 Specimens which may be this species were obtained in the Jacksonville Well at 510-550 feet, and a few fragments below. Afore definite specimens were in the material from the well at Tiger Bay, at 360-400 feet.