Application of Baird's name _Batrachyla longipes_ to the species of frog heretofore called _Syrrhophus latodactylus_ poses one serious problem. _Batrachyla longipes_ is the type-species (by original designation) of the genus _Epirhexis_ Cope, 1866, which has priority over _Syrrhophus_ Cope, 1878. If _Batrachyla longipes_ is left in the status of a _nomen dubium_, _Epirhexis_ can be forgotten, for the two names are tied together. However, since it seems almost certain that _Batrachyla longipes_ and _Syrrhophus latodactylus_ are conspecific, the former name should not be left as a _nomen dubium_. _Epirhexis_ never came into general usage (Cope cited the name four times, but no one else has used it), whereas _Syrrhophus_ is well established in the zoological literature. It would serve only to confuse the literature to adhere strictly to the Law of Priority and replace _Syrrhophus_ with _Epirhexis_. Therefore, _Syrrhophus_ is used in this paper, even though _Epirhexis_ has priority. A request for the suppression of _Epirhexis_ Cope, 1866, has been submitted to the International Commission of Zoological Nomenclature (Lynch, 1967). _Etymology._--Latin, meaning long-footed; Taylor's _latodactylus_ refers to the wide digital pads. [Illustration: FIG. 14: Distribution of _Syrrhophus dennisi_ (triangle) and _S. longipes_ (circles).] _Distribution._--Moderate elevations (650 to 2000 meters) along the Sierra Madre Oriental from central Nuevo Leon to northern Hidalgo, Mexico (Fig. 14). _Specimens examined._--(122) MEXICO, _Hidalgo_: 3 km. NE Jacala, AMNH 52977; 9.6 km. NE Jacala, 1800 m., TCWC 10966-70, 12179; 8 km. S Jacala, La Placita, 1850 m., FMNH 100266-68, 103244, UIMNH 13291, 13327. _Nuevo Leon_: Salto Cola de Caballo, KU 92572; Huasteca Canyon, 15 km. W Monterrey, 680 m., FMNH 100063 (holotype of _S. latodactylus_), UIMNH 13290; 6.5 km. N Pablillo, EAL 1319; Sabinas Hidalgo, USNM 139728. _Queretaro_: Cueva de los Riscos, 8 km. SW Jalpan, KU 106300. _San Luis Potosi_: 13 km. E Santa Barberita, LSUMZ 2295; second camp, San Luis Potosi road, UIMNH 13326; Xilitla, Cueva sin nombre, UMMZ 125892. _Tamaulipas_: 4 km. W El Carrizo, 500 m., UMMZ 111343 (31); 8 km. N Chamal, Bee Cave, KU 106299; 14.5 km. NNW Chamal, 420 m., UMMZ 111339-40, 111342 (4), 111344 (11); 19 km. NNW Chamal, 700 m., UMMZ 111341 (3); El Chihue, 1880 m., UMMZ 111289 (4); 11 km. N Gomez Farias, 1060 m., UMMZ 101166; 11 km. WNW Gomez Farias, 1800 m., UMMZ 108507 (3); 8 km. NW Gomez Farias, 1060-1400 m., LSUMZ 11085, UMMZ 101167 (3), 101168 (4), 101169 (2), 101170 (3), 101171 (2), 101360-61, 102860, 102933 (4), 102934 (2), 102935-38, 102939 (2), 102940-43, 108800 (3), 110735, 111345-46. =Syrrhophus pipilans= Taylor _Syrrhophus pipilans_ Taylor, 1940c:95-97, pl. 1 [Holotype.--FMNH 100072 (formerly EHT-HMS 6843), 14.6 km. S Mazatlan, Guerrero, Mexico; collected on July 22, 1936, by Edward H. Taylor].