NO. II FORAMINIFERA OF VENEZUELA GRAVELL 39 



(12) 191S. The larger fossil foraminifera of the Panama Canal Zone. U.S. 



Nat. Mus. Bull. 103, pp. 89-102, pis. 34-45. 



(13) 1918. Some Pliocene and Miocene foraminifera of the Coastal Plain 



of the United States. U.S. Geol. Surv. Bull. 676, pp. i-ioo. 

 pis. 1-31. 



(14) 1919. Fossil foraminifera from the West Indies. Carnegie Inst. Wash- 



ington Publ. 291, pp. 21-71, 15 pis., 8 text figs. 



(15) 1920. The American species of Orthophragmina and LepldocycUna. 



U.S. Geol. Surv. Prof. Pap. 125, pp. 39-108, pis. 7-35. 



(16) 1 02 1. American species of Operculina and Heferostegina, and their 



faunal relations and a new species of Orthophragmhux from 

 Louisiana. U.S. Geol. Surv. Prof. Pap. 128, pp. 125-146, 

 pis. 18-22. 



(17) 1922. Foraminifera from the Eocene deposits of Peru. In Geology 



of the Tertiary and Quaternary period in the northwestern 

 part of Peru, by T. O. Bosworth, pp. 136-139, pi. 24. 



(18) 1928. Foraminifera, their classification and economic use. Cushman 



Lab. Foram. Res. Spec. Publ. i, 401 pp.. 51 pis. 



(19) 1925. An Eocene fauna from the Moctezuma River, Mexico., Bull. 



Amer. Assoc. Petroleum Geologists, vol. 9* no. 2, pp. 298-303, 

 pi. 6-8. 



(20) DouvnxE, H. 



1915. Les Orbitoides de I'ile de la Trinite, Acad. Sci., C.R., vol. 161, 

 pp. 87-92. 



(21) 1917. Les Orbitoides de I'ile de la Trinite. Acad. Sci., C.R., vol. 164, 



pp. 841-847, 6 text figs. 



(22) 1924. Revision des Lepidocyclines. Soc. Geol. France, !Mem., n.s., 



vol. I, no. 2, pp. 1-49, 2 pis., 48 text figs. 



(23) T925. Revision des Lepidocyclines. Soc. Geol. France, Mem., n.s., 



vol. I, no. 2, pp. 51-123, 5 pis., text figs. 49-83. 



(24) 1927. Les Orbitoides de la region petrolifere du Mexique. Soc. Geol. 



France, C.R. seance Feb. 21, 1927, p. 34. 



(25) GoRTER. Nettie E., and Van der Vlerk, I. M. 



1932. Larger foraminifera from Central Falcon (Venezuela). Leidsche 

 Geol. ?ifededeel., vol. 4, no. 2, pp. 94-122, pis. 11-17, and 2 

 tables. 



(26) GuppY, R. L. J. 



1866. Cisscis astcriscus. Quart. Journ. Geol. Soc. London, vol. 22, 

 p. 584, pi. 25, figs. I9a-b. 



(27) HoDsoN, Helex K. 



1926. Foraminifera from Venezuela and Trinidad. Bull. Amer. Pal., 

 vol. 12, no. 47, pp. 1-46, 8 pis. 



(28) Koch, Richard. 



1926. Miogypsina stauffcri, n. sp., from Venezuela. Eclog. Geol. Helvet., 

 vol. 19, no. 3, pp. 751-753, pl- 28. 



(29) 1928. Tertiarer Foraminiferenkalk von der Insel Cura(;ao. Eclog. Geol. 



Helvet., vol. 21, no. i, pp. 51-56, i pL, 1928. 



(30) Lemoine, P., and Douville, R. 



1904. Sur le genre Lepidocyclina. Soc. Geol. France, Paleont., Mem. 

 32, pp. 1-41, 3 pis. 



