NO. lO AMERICAN SPECIES OF LEPIDOCYCLINA — VAUGHAN 25 



are only three chambers to a tier. At the periphery there are no 

 lateral oliatnbers, the eqnatorial layer being bare for a considerable 

 distance. Directly over the embryonic apparatus the lateral chambers 

 have a length of about 50 /a and a height of about 20 fx. In the same 

 tier at the periphery they have a length of 1 10 /a and a height of 30 /*. 

 The pillars have a diameter of about 75 /x. In each equatorial chamber 

 there are two stoloniferous apertures about 10 /x to 14 /a in diameter. 



Localities and geologic horicon. — Island of Antigua, at Wetherell 

 Clifif; inland clifif, southward extension of Wetherell Clifif, under 

 oyster beds, 600 feet above sea-level ; and lowest tilted bed on beach, 

 Lynch Point, all collected by W. R. Forrest. Horizon, middle 

 Oligocene, Antigua formation. A stellate species of Lepidocyclina 

 suggestively like L. zvefherellensis was collected by O. E. Meinzer at 

 several localities in the vicinity of Guantanamo, Cuba, U.S.G.S. 

 locality no. 7513, about f mile east of Ocujal Spring and about 4I 

 miles due east of Monument H6 on the east boundary of the U.S. 

 Naval Reservation. Vertical sections of fragments of two specimens 

 are illustrated by plate 2^, figures 9, 10. A stellate species was also 

 collected at Ocujal Spring, U.S.G.S. locality no. 7512. 



Recently Nuttall ^ has described a stellate species, Lepidocyclina 

 (Lepidocyclina) asterodisca from the Oligocene Alazan shale of 

 eastern ^lexico. Gorter and Van der Vlerk ''have just described under 

 the name Lepidocyclina (Lepidocyclina) senni from the Eocene 

 " Menegrande series " of Venezuela another stellate species. Later 

 in the present paper still another stellate species, L. (N ephrolepidina) 

 dartoni Vaughan is described. 



LEPIDOCYCLINA (NEPHROLEPIDINA) TOURNOUERI 

 Lemoine and R. Douville 



Plate 13, figs. I, 2 



1904. Lepidocyclina tournoucri Lemoine and R. Douville, Soc. Geol. France, 

 Paleont., Mem,. 32, p. 19, pi. i, fig. 5; pi. 2, figs. 2, 14; pi. 3, fig. i. 



1924. Lepidocyclina toiirnoiieri H. Douville, Soc. Geol. France, Mem., n.s., 

 vol. 2, no. 2, p. 78, pi. 6, figs. 8-12, text figs. 62-68. 



1924. Lepidocyclina tournoucri Vaughan, Bull. Geol. Soc. Amer., vol. 35, p. 798, 

 pi. 33, figs. 6, 7. 



^ Nuttall, W. L. F., Lower Oligocene foraminifera from Mexico. Journ. Pal., 

 vol. 6, p. 34, pi. 7, figs. 5, 8; pi. 9, fig. 10, 1932. 



^ Gorter, Nettie E., and van der Vlerk, L M., Larger foraminifera from Central 

 Falcon (Venezuela). Leidische Geol. Mededeel., vol. 4, no. 2, p. 105, pi. 11, figs. 

 4-6, 1932. 



