Comprehensive Description

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: Eupsophus migueli is a generally small frog, roughly about 36 mm in snout-vent length. The skin on the dorsum and venter is smooth. It has a sharp canthus rostralis, a slightly pointed snout and sloping lores. The tympanic membrane is distinct. Forelimbs and hindlimbs are thin. The inner metatarsal tubercle is well developed, while the outer is small (Formas 1978).

Coloration: The dorsum is grayish black with two dark paravertebral areas that run to the tip of the head. The ventral side is a dark wine color with irregular white spots. The iris has a bronze yellow top half and brown lower half (Formas 1978).

Variation: Individuals vary in coloration pattern and have either a green olive dorsum or a grey dorsum. Some may have a lighter vertebral line running from snout to vent or exhibit a dark hour-glass pattern, especially on those with an olive background. Spots on the venter also vary in size (Formas 1978).

Diagnosis: E. migueli can be distinguished from E. roseus by its iris coloration and wine coloured belly. E. roseus has a transparent belly and the upper half of the iris is orange. From other species of the genus, it is distinguished by its coloration pattern. It has a notched xiphosternum, which is not present in other Chilean species of this genus (Formas 1978).

E. migueli is named for the species author’s son (Formas 1978).

Its chromosome number is 2n=30 (Formas 1978).


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