Leptomantis angulirostris (Ahl, 1927)

Species Identity

Leptomantis angulirostris is a relatively small frog species.

Body Size

Males have a body length range of 31 to 33 mm, while females range from 45 to 51 mm.

Head Morphology

This frog has a head that is wider than it is long, and a pointed snout with a sharp canthus rostralis.

Digit Morphology

A characteristic feature of this species is dilated finger and toe tips.

Foot Webbing

Foot webbing is almost complete, reaching the toe pad on all digits except the fourth.

Hand Webbing

Hand webbing is partial, and it reaches the second sub-articular tubercle on the third finger.

Skin Texture

The dorsal skin is smooth, while the skin on the chest and venter is granulated.

Dorsal Coloration

Skin coloration is variable, but generally falls within the range from pale grey-green to brown.

Dark Body Markings

Dark crossbars are commonly present on the dorsum near the vent, as well as on the legs.

Limb and Flank Coloration

The sides of the body and the inner surface of the legs are yellow with black blotches.

Snout Markings

A few fawn-colored blotches are often found on the snout.

Iris Coloration

The iris is brown, and it often has a blue tinge.

Distribution Range

This species is believed to occur in Sumatra and Malaysian Borneo, though the Sumatra record requires further verification.

Confirmed Distribution Sites

It is commonly found in the Crocker Range and Mt. Kinabalu National Park.

Habitat

It inhabits primary rainforests, along rocky streams located at elevations above 1000 m above sea level.

Male Mating Behavior

Males vocalize while perched on small saplings and trees that overhang streams.

Tadpole Habitat

Tadpoles of this species live in shallow stream areas under gravel.