Etymology.—Latin, meaning long-footed; Taylor's latodactylus refers to the wide digital pads.
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 León to northern Hidalgo, México ([Fig. 14]).
Specimens examined.—(122) MÉXICO, 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 León: 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 Potosí: 13 km. E Santa Barberita, LSUMZ 2295; second camp, San Luis Potosí 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 Gómez Farías, 1060 m., UMMZ 101166; 11 km. WNW Gómez Farías, 1800 m., UMMZ 108507 (3); 8 km. NW Gómez Farías, 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, 1940c:95-97, pl. 1 [Holotype.—FMNH 100072 (formerly EHT-HMS 6843), 14.6 km. S Mazatlán, Guerrero, México; collected on July 22, 1936, by Edward H. Taylor].
Diagnosis.—Medium sized frogs, males 22.6-28.5 mm. snout-vent, females 21.1-29.4 mm. snout-vent length; vocal slits present in males; finger tips slightly expanded, truncate in outline; inner metatarsal tubercle less than twice the size of outer; skin of dorsum smooth to shagreened, that of venter smooth; tympanum 36.5-54.0 per cent diameter of eye; dorsum dark brown with large or small light brown, orange-brown, or yellowish spots or blotches; limbs banded; interorbital bar absent.