About Leptomantis angulirostris (Ahl, 1927)
Leptomantis angulirostris is a relatively small frog species. Males have a body length range of 31 to 33 mm, while females range from 45 to 51 mm. This frog has a head that is wider than it is long, and a pointed snout with a sharp canthus rostralis. A characteristic feature of this species is dilated finger and toe tips. Foot webbing is almost complete, reaching the toe pad on all digits except the fourth. Hand webbing is partial, and it reaches the second sub-articular tubercle on the third finger. The dorsal skin is smooth, while the skin on the chest and venter is granulated. Skin coloration is variable, but generally falls within the range from pale grey-green to brown. Dark crossbars are commonly present on the dorsum near the vent, as well as on the legs. The sides of the body and the inner surface of the legs are yellow with black blotches. A few fawn-colored blotches are often found on the snout. The iris is brown, and it often has a blue tinge. This species is believed to occur in Sumatra and Malaysian Borneo, though the Sumatra record requires further verification. It is commonly found in the Crocker Range and Mt. Kinabalu National Park. It inhabits primary rainforests, along rocky streams located at elevations above 1000 m above sea level. Males vocalize while perched on small saplings and trees that overhang streams. Tadpoles of this species live in shallow stream areas under gravel.
