Differences in interpretation of the terms "unexpanded" and "narrow," as well as differences in techniques of preservation, have led to confusion of the reported digital shapes in various species. Constant specific differences are evident in the hands (Fig. 1). Except in the cases of excessive uptake of fluids, all species have a terminal transverse groove at the tip of each digit. Taylor (1940b) stated that _S. smithi_ lacked grooves, but examination of the holotype reveals faint grooves at the tops of the digits. _Syrrhophus guttilatus_, _leprus_, _pipilans_, and _verrucipes_ lack lateral fringes on the fingers. Lateral fringes are well developed in the _longipes_ and _modestus_ groups but poorly defined or absent in the other members of the genus. The digital pads of the frogs of the _longipes_ group are much broader than those of the other species and are narrowest in the frogs of the _leprus_ group. Supernumerary tubercles are present on the palmar surfaces of all species of the genus. TABLE 4--Size and Proportions in the Frogs of the _Syrrhophus leprus_ Group. A: _cystignathoides campi_ B: _c. cystignathoides_ C: _leprus_ D: _rubrimaculatus_ ========================================================================== Snout-vent Tibia Head Tympanum/ Eyelid/ length length/ width/ Eye Interorbital Species Sex N (SVL) SVL SVL -------------------------------------------------------------------------- A [M] 33 16.3-23.5 41.3-49.6 34.0-40.1 43.7-66.5 43.2-89.6 (45.8) (37.0) (56.2) (61.5) [F] 12 16.0-25.8 41.5-51.0 33.0-38.0 42.8-60.0 48.2-69.2 (45.8) (35.0) (51.2) (60.1) B [M] 15 16.8-22.1 45.1-50.4 33.2-40.7 44.3-68.7 44.6-65.4 (47.3) (37.8) (54.8) (60.0) [F] 6 19.6-24.2 46.4-50.0 34.1-38.1 43.3-56.5 53.2-65.4 (47.6) (36.2) (46.9) (59.2) C [M] 14 20.6-26.4 42.3-52.3 35.0-40.3 47.5-62.5 58.2-72.5 (46.8) (37.4) (56.5) (67.3) [F] 15 22.1-29.2 43.4-53.3 32.6-38.9 38.6-57.9 50.2-86.9 (47.1) (35.8) (47.1) (68.1) D [M] 12 18.2-23.5 40.4-46.2 31.8-35.5 35.5-46.5 65.1-78.5 (43.4) (33.8) (41.7) (71.7) ========================================================================== TABLE 5--Size and Proportions in the Frogs of the _Syrrhophus longipes_ and _S. marnockii_ Groups. A: _dennisi_ B: _longipes_ C: _guttilatus_ D: _marnockii_ E: _verrucipes_