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Morphologically,Leptodactylus caatingae differs very little from Leptodactylus latinasus and
Generally, dorsal patterns include single or double dark chevrons, sometimes well defined and sometimes weakly defined. The back is also characterized by chaotically placed small to medium-sized dark markings, while a light, interrupted pin stripe is present in some specimens.
Lip stripes vary from distinct to indiscernible.
Most specimens have a distinct light stripe on the lower face of the posterior thigh, surrounded by irregular broad, dark outlines. Upper shanks have irregular dark transverse bands.
There is a great deal of variation in belly patterns: specimens from one locality have either an almost uniform distribution of densely packed melanophores, a variegated pattern of melanophores, or groups of melanophores scattered across the belly. Specimens from other localities had a weakly variegated pattern of melanophores, a few scattered melanophores, or lack a belly pattern altogether.
Dorsolateral folds may be present or absent.
White tubercles can frequently be found on the legs and feet.
All information for this account comes from: "Leptodactylus caatingae, A New Species of Frog From Eastern Brazil (Amphibia: Anura: Leptodactylidae)" by W. Ronald Heyer and Flora A. Juncá (2003).