THE UNIVERSITY OF KANSAS SCIENCE BULLETIN Vol. XXXVI, Pt. II] July 15, 1954 [No. 11 Further Studies on the Serpents of Costa Rica By Edwahu H. Taylor Abstract: Additional collections of reptiles from Costa Rica made in 1951 and 1952 include some 90 species or subspecies of snakes, bringing the known serpent fauna of the countrx-to 151 forms. In this work the following new spe-cies or subspecies are described: Ceophis bakeri, Geophis zeledoni, Geophis acutirostris, Ninia cerroensis, Dnjodophis songiiiventris, Pliocercus arubricus, Rhadinaca ahamontanus, Rhadinuea decipiens rubricollis, TantiUa costaricensis, Dipsas tenui.witna, Bothrops schlegeUi supruciliaris. Certain species are included that did not appear in Taylor's "A Review of the Serpents of Costa Rica," 1952. These are Loxocemus bicolor Cope, Trime-topon sleveni Dunn, Leptophis uebulosus Oliver, Leptophis aemgino.sus Cope, Leptophis richardi praestans Cope, Dendrophidion vinitor Smith. INTRODUCTION My study of the herpetological faunas of Costa Rica, begun in 1947, has been continued to date, and has involved three Costa Rican expeditions. The first, undertaken at the request of the Rec-tor of the National University of Costa Rica, extended from June 21 to September 7, 1947. A few localities were visited and a collection, consisting of many hundreds of specimens, was obtained. The second expedition extended from June 26 to September 14, 1951. The third expedition began work in Costa Rica June 6, 1952, and kept in the field until September 14 of the same year. Using as a basis the materials obtained by myself and Richard Clark Taylor in 1947, I prepared a brief Review of the Snakes of Costa Rica which appeared October 1, 1951. In this work short descriptions of the species taken, together with descriptions or synopses of other spe-cies presumed to occur within the confines of Costa Rica, were given. Twenty-four species were illustrated. In the collections of 1951 and 1952 there are some 90 species of (673) 2—3216
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