Dr. H. G. Kugler, chief geologist of the North Venezuelan Petroleum Company, at Puerto Cabello, entrusted us with the examination of a collection of larger foraminifera, selected from material collected by the geologists of this Company in Central Falcon. Dr. A. Senn kindly added material that had already been collected from the same region by Prof. Dr. M. Reinhard and Dr. M. Blumenthal. The material thus combined should give us a clear picture of the distribution of the larger foraminifera in 7 stages of the Tertiary in this Venezuelan region. We are very much indebted to Dr. Kugler not only for entrusting us with this material, but also for the constant aid given us during the investigation. We also wish to thank Dr. A. Senn, Dr. W. T. Keller and Dr. E. Lehner for information and the directors of the Museum of Natural History at Bâle for lending material. Last but not least we wish to express our thanks to the Direction of the North Venezuelan Petroleum Company who not only were so broadminded as to permit the publication of the results, but who also voted a sum for the costs of investigation and publication.