NO. II FORAMINIFERA OF VENEZUELA — GRAVELL 15 



Localities and geologic horizon. — Fairly abundant in material from 

 locality 163. Rock sections of material from localities 148, 149, 165, 

 1149, 1 1 52, and II 62 contain a few poor sections of this species. That 

 the above localities are upper Eocene is shown by the association of 

 D. {Asterocyclina) asterisca (Guppy), D. (Asterocyclina) kugleri 

 Gravell, n. sp., L. (Lepidocyclina) macdonaldi Cushman, L. (Lept- 

 docyclina) trinitatis H. Douville, and other species. 



CAMERINA sp. a 



Plate I, figs. 1-5 



Test small, compressed, lenticular ; outer surface without surface 

 ornamentation except the slightly raised narrow septal markings. 

 Diameter about 1.5 to 2.5 mm; thickness about 0.5 to 0.75 mm. The 

 thickness is about one third the diameter. 



Test composed of four to five whorls, the fourth having about 26 

 chambers and the fifth about 32. 



The specimens sectioned are all of the megalospheric form. The 

 initial chamber has a diameter of about 70 fi. 



Localities and geologic horizon. — -This species occurs in the 

 Oligocene at localities 480, 481, 482, 496, 497, 1147, 1166, 1186, 1222, 

 and possibly 514. Associated with Heterostegina sp. cf. H. antillea 

 Cushman. 



Camerina sp. a is probably closely related to C. panamensis (Cush- 

 man) (12, p. 98, pi. 43, figs. 9-10), from the Culebra formation of 

 Panama, as that species has approximately the same size, shape, and 

 number of whorls, but it differs in the width of its whorls, which are 

 not so wide as those of C. panamensis. 



This species and Heterostegina sp. cf. antillea compose the bulk 

 of the limestone from several localities. Unfortunately, good speci- 

 mens cannot be separated from the matrix, owing to poor preservation 

 of the specimens or to hardness of the matrix. Although this is 

 probably a new species, it is not named because the material is too 

 poor for adequate specific characterization. 



CAMERINA sp. indet. 



Sections of hard middle Oligocene San Luis limestone from locali- 

 ties 498, 959, ii2i„ 1 123, 1209, and 1 221 contain a few random 



sections of a small indeterminate species of Camerina. 

 2 



