THE UNIVERSITY OF KANSAS SCIENCE BULLETIN Vol. XXV] June 1, 1938 [No. 19 Frogs of the. Hyla eximia Group in Mexico, with Descriptions of Two New Species EDWARD H. TAYLOR, Department nf Zoology, University of Kansas Abstr.act: Six Mexican forms of the genus Hyla are recognized as belong-ing in the eximia group. These are Hyla eximia Baird; //. euphorbiacea Ciiinther; H. lajrentzi Mertens and Wolterstorff ; H. regilla Baird and Girard; H. cdrdenasi sp. nov. ; and H. umghtoram sp. no^'. Cope's species H. gracilipes is referred to the synonym of H . eximia, while H. smithii, placed in synonymy of eximia by Kellogg (1932), is regarded as a. good species belonging in a different group. Hyliola bocourti Mocquard is referred to the synonymy of Hyla euphorbiacea Giinther. TN MY endeavor to identify correctly a collection of Mexican -■-Hylid frogs, I found considerable difficulty in properly allocating several forms, obviously related to the small Hyla eximia Baird, but which differed from this species in numerous characters. After a review of the literature (which appears to be somewhat confused), and an examination of the types of Hyla eximia and H. gracilipes, I have arrived at certain conclusions differing from those of certain former workers. The literature offered the following names for these forms oc-curring in Mexico or adjoining territory (forms related so as to war-rant their association into a species group which is here designated as the eximia group): Hyla eximia Baird, Hyla euphorbiacea Giinther, Hyla gracilipes Cope, Hyliola bocourti Mocquard, Hyla regilla Baird and Girard and Hyla lajrentzi Mertens and Wolter-storff. A critical examination of the cotypes of Hyla gracilipes and the cotypes of H. eximia shows them to belong in what I am forced to regard as a single species {H. eximia), since I can discern no con-stant structural characters or character which will serve to separate (421)
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