FORAMINIFERA FROM DEEP NwELLS 45

to the textularian aperture at the base of the chamber, the inner portion of the wall has a number of small perforations. This is in some respects like Chrysalidina gradata d'Orbigny, which he described from the Cretaceous of Europe.

 Genus Tritaxia Reuss, i86o.
 Tritaxia sp.
 A species with concave sides, rather sharp angles, but the edges rounded, and the whole test rather short, wit-h the sutures indistinct, occurs in several wells with the Orbitolina. It was recorded from the following: Jacksonville, 702-725 feet; Apopka, 310 feet: and Tiger Bay, 720 feet.

 Genus Gaudryina d'Orbigny, 1839.
 Gaudryina ffintii Cushman.
 Gaudrvina subrotundata Flint (not G. subrotundata Schwager, 1866), Ann. Rep. U. S. Nat. Mus., 1897 (1899), p. 287, pl. 33, fig. I.
 Gaudryfina fnintii Cushman, Bull. 71, U. S. Nat. Mus., pt. 2. 1911, p. 63. fig. I02a-c (in text) ; Bull. 103, U. S. Nat. Mus., 1918, p. 56, pl. 20, fig. 4.
 There is a single rather small specimen from the Ponce de Leon Well, St. Augustine, Florida, coming from a depth of 200 feet,
which seems to represent this species.
 A specimen from the Culebra formation of the Panama Canal Zone was referred to this species, but it has not been previously recorded in the American Miocene.

 GaudrVina sp. ?
 Plate i, figure 7.
 There is a species with a triangular early portion, and later very rounded biserial chambers which occurred in the well at Marathon, Florida, at a depth of 1,650 feet.

 Genus Clavulina d'Orbigny, 1826.
 Clavulina cononnis d'Orbigny.
 Clavulina communis d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 268; Forain. Foss. Bass. Tert. Vienne, 1846, p. 196, pl. 12, figs. 1, 2. Cushman, Bull. jo, U. S. Nat. Mus., 1918, p. 57, p1. 20, fig. 6.