NO. II FORAMINIFERA OF VENEZUELA GRAVELL 27 



height fairly constant, about 60 /x ; roofs about 16 /m thick. Pillars 

 cone-shaped in vertical section, regularly distributed in central part 

 of the test. They are largest over the center, where they have a 

 diameter of abovit 180 /a, decreasing in size toward the flange. 



Localities and geologic horizon. — Fairly abundant at localities 12, 

 16, 148, 149, 163, 165, and 1 149. The material from localities 1152 

 and 1 162 contains abundant fragments of Lepidocyclina and Astero- 

 cyclina. Some of the specimens of Lepidocyclina appear to be L. 

 (Lepidocyclina) trinitatis H. Douville. 



Associated with D. (Asterocyclina) asterisca (Guppy), D. (As- 

 terocycVma) kngleri Gravell, n. sp., and L. {Lepidocyclina) mac- 

 donaldi Cushman. 



The indicated geologic horizon is upper Eocene. L. {Lepidocyclina) 

 trinitatis also occurs in the upper Eocene of Trinidad and Jamaica. 



A single section (pi. 3, fig. 8) of a specimen of Lepidocyclina 

 which in many features resembles L. {Lepidocyclina) trinitatis H. 

 Douville was observed in rock sections of material from locality 165. 

 This specimen differs from L. trinitatis in that its embryonic ap- 

 paratus is double, composed of two pairs of subequal embryonic 

 chambers. This specimen has the type of embryonic apparatus ex- 

 hibited by L. {Polylepidina) vanslohheni M. G. Rutten and Vermunt 

 (41, p. 13, pi. I, fig. II ; pi. 2, fig. 9; pi. 3, figs. 3, 4). Lepidocyclina 

 vanslobbeni does not belong to the subgenus Polylepidina, as its 

 embryonic apparatus is not polylepidine, but is a double or twinned 

 Lepidocyclina s.s. type of embryonic chambers. 



This twinning of the embryonic apparatus also occurs in the genus 

 Discocyclina. Vaughan (62, pp. 14-16, pi. 5, figs. 1-6) described 

 Discocyclina cloptom Vaughan, some specimens of which species 

 contain the normal type of embryonic apparatus, and others two, three, 

 and even four sets of embryonic chambers. 



LEPIDOCYCLINA (LEPIDOCYCLINA) SANLUISENSIS Gravell n. sp. 



Plate 4, figs. I, 2, 3, 4 



Only the megalospheric form of this species was observed. 



Test medium size, lenticular, rather thick, with a narrow, stout 

 projecting rim ; diameter ranges from about 3 to 8 mm ; thickness 

 from about 2 to 2.y mm ; rim varies from a well-developed conspicuous 

 collar about 200 fx wide to a mere vestige. The margin of the largest 

 specimen is broken ; diameter of this specimen about 8 mm ; rim 

 projects about 2 mm on each side ; thickness about 2.75 mm. Large 

 polygonal papillae about 250 /* in diameter cover the central part of 



