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Medium to large toad; SVL of males up to 91 mm, of females up to 130 mm. Snout short rounded; paratoids prominent, smooth, long or kidney-shaped; tympanum is relatively large, usually about 0.50 of eye diameter. Back covered with medium-sized warts, which are usually tipped with dark spines in older animals, venter slightly granular. Second finger shorter than first; hind limbs short, with limited webbing between digits; tarsal ridge present. Males with a subgular vocal sac. Dorsum gray brown, with paired dark marks in the interorbital, pectoral, and sacral regions, often a thin whitish, mid-dorsal line. Limbs banded dark. Ventral sides whitish; throat dark in males. Adult males are often suffused yellow, with a reduced dorsal pattern and are slightly more spinose than females. Call characteristics: average pulses/call = 19.67; average call duration = 538.73 ms.