| Species | Sex | N | Snout-vent length (SVL) | Tibia length/ SVL | Head width/ SVL | Tympanum/ Eye | Eyelid/ Interorbital |
| cystignathoides campi | ♂ | 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) | ||||
| ♀ | 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) | ||||
| c. cystignathoides | ♂ | 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) | ||||
| ♀ | 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) | ||||
| leprus | ♂ | 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) | ||||
| ♀ | 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) | ||||
| rubrimaculatus | ♂ | 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.
| Species | Sex | N | Snout-vent length (SVL) | Tibia length/ SVL | Head width/ SVL | Tympanum/ Eye | Eyelid/ Interorbital |
| dennisi | ♂ | 16 | 22.8-28.4 | 43.9-49.7 | 35.3-41.2 | 53.9-64.2 | 55.3-74.0 |
| (47.4) | (38.8) | (58.9) | (65.1) | ||||
| ♀ | 10 | 25.9-32.0 | 46.3-50.8 | 35.6-40.3 | 50.6-58.7 | 58.1-70.9 | |
| (48.2) | (37.7) | (54.9) | (63.6) | ||||
| longipes | ♂ | 22 | 22.1-33.2 | 45.8-51.7 | 38.7-44.4 | 61.1-87.2 | 61.5-83.0 |
| (48.4) | (41.8) | (72.0) | (72.0) | ||||
| ♀ | 19 | 26.8-39.6 | 44.3-51.0 | 36.3-40.8 | 49.5-72.1 | 55.3-85.9 | |
| (47.2) | (39.1) | (59.5) | (67.9) | ||||
| guttilatus | ♂ | 19 | 20.6-29.0 | 41.2-48.1 | 36.9-44.9 | 55.1-75.7 | 53.3-79.5 |
| (44.5) | (40.6) | (64.1) | (66.0) | ||||
| ♀ | 5 | 25.7-31.0 | 41.4-46.8 | 35.9-42.3 | 47.6-61.7 | 62.3-79.8 | |
| (43.6) | (38.5) | (54.0) | (72.9) | ||||
| marnockii | ♂ | 14 | 18.4-28.9 | 42.3-47.2 | 36.1-43.0 | 47.2-68.3 | 51.6-74.4 |
| (44.1) | (39.6) | (61.2) | (66.3) | ||||
| ♀ | 29 | 20.4-35.4 | 38.7-46.4 | 35.9-41.3 | 45.8-73.3 | 52.1-70.5 | |
| (42.7) | (38.2) | (60.3) | (60.7) | ||||
| verrucipes | ♂ | 29 | 17.5-29.2 | 42.7-49.5 | 36.2-42.4 | 56.1-82.2 | 56.8-82.8 |
| (46.3) | (39.1) | (67.8) | (70.4) | ||||
| ♀ | 6 | 26.5-31.7 | 42.4-47.7 | 36.0-38.1 | 45.8-57.8 | 61.0-77.9 | |
| (44.6) | (37.0) | (53.9) | (69.0) |
Table 6—Size and Proportions in the Frogs of the Syrrhophus pipilans and S. modestus Groups.
| Species | Sex | N | Snout-vent length (SVL) | Tibia length/ SVL | Head width/ SVL | Tympanum/ Eye | Eyelid/ Interorbital |
| pipilans nebulosus | ♂ | 17 | 22.9-28.5 | 38.1-42.0 | 34.4-37.2 | 36.6-47.8 | 56.1-82.4 |
| ♀ | ♀ | ♀ | (40.0) | (35.4) | (43.6) | (68.2) | |
| ♀ | 3 | 21.1-22.7 | 42.1-44.5 | 33.2-35.8 | 36.6-47.6 | 64.3-65.4 | |
| pipilans pipilans | ♂ | 18 | 22.6-27.8 | 37.9-44.0 | 32.2-36.5 | 38.0-54.0 | 56.1-79.5 |
| (41.4) | (33.0) | (46.2) | (67.3) | ||||
| ♀ | 1 | 29.4 | 38.4 | 32.5 | 44.6 | 55.0 | |
| modestus | ♂ | 8 | 15.8-20.1 | 38.5-42.6 | 32.1-38.1 | 26.8-39.3 | 57.0-86.9 |
| (40.6) | (34.2) | (31.5) | (69.1) | ||||
| ♀ | 1 | 18.5 | 44.2 | 36.0 | 24.0 | 52.1 | |
| pallidus | ♂ | 6 | 17.9-19.3 | 41.0-44.9 | 32.6-36.2 | 27.0-35.6 | 59.4-67.7 |
| (43.4) | (35.2) | (30.9) | (65.2) | ||||
| teretistes | ♂ | 18 | 19.2-23.2 | 41.5-45.3 | 32.5-36.4 | 28.6-43.8 | 51.2-75.0 |
| (43.7) | (34.0) | (33.7) | (62.2) | ||||
| ♀ | 1 | 24.8 | 41.8 | 30.8 | 37.9 | 60.5 | |
| nivocolimae | ♂ | 15 | 18.9-21.1 | 42.2-48.6 | 30.9-37.1 | 30.0-39.3 | 42.6-69.1 |
| (45.0) | (33.7) | (34.7) | (55.0) | ||||
| ♀ | 1 | 24.1 | 40.9 | 33.5 | 27.6 | 56.5 | |
| interorbitalis | ♂ | 1 | 25.6 | 43.0 | —— | 39.4 | 57.6 |
| ♀ | 9 | 20.2-26.7 | 39.9-47.1 | 32.6-39.3 | 29.1-41.2 | 58.2-76.9 | |
| (43.2) | (35.8) | (36.4) | (69.2) |
Fig. 1: Palmar views of hands of six species of the eastern complex of Syrrhophus. (A) verrucipes (UIMNH 15995), (B) rubrimaculatus (KU 58911), (C) dennisi sp. nov. (holotype, UMMZ 101121), (D) guttilatus (UIMNH 55520), (E) marnockii (TCWC 4782), and (F) longipes (TCWC 12179). All ×6.5.