This frog is relatively small in stature, exhibiting pronounced sexual dimorphism with females achieving a snout to vent length of 45-50 millimeters and males 28-30 millimeters. Chief diagnostics are that all limbs are elongated, with feet displaying moderate webbing. The dorsal coloration is usually brown, and typically a dark bar is exhibited between the eyes, with additional barring on each limb. Each eye exhibits an iris that is gold in coloration above.
For C. talamancae, the concealed surfaces include rear thigh surfaces that may be yellowish or brownish, and having prominent infusion of red or purple. (Köhler. 2001) Juveniles of the species have a prominent white colored lip line. (Savage. 2002)
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