Agalychnis spurrelli Boulenger, 1913

Common Name & Sexual Size Dimorphism

Agalychnis spurrelli, commonly called the gliding tree frog, has distinct size differences between sexes: males reach a snout-to-vent length of 48 to 56 mm (1.9 to 2.2 in), while females measure 60 to 72 mm (2.4 to 2.8 in).

Head & Eye Characteristics

This species has a broad head and large eyes with reticulated lower eyelids.

Body & Skin Texture

It has a slim body; the skin on its dorsal surface and limbs is smooth, while the belly has granular skin.

Limb Structure & Adhesive Discs

Its limbs are slim, and both the fingers and toes bear adhesive discs.

Webbing of Fingers and Toes

Fingers are around three-quarters webbed, and toes are fully webbed.

Coloration

The dorsal surface changes colour from pale green to dark green at nightfall, and the underparts are cream and orange.

Geographic Distribution

The gliding tree frog is native to humid forests in south-eastern and south-western Costa Rica, Panama, the Pacific lowlands of Colombia, and north-western Ecuador.