Ansonia minuta Inger, 1960

Genus Classification

Ansonia minuta is a small species in the genus Ansonia.

Adult Size

In terms of snout–vent length, males measure between 20–24 mm (0.79–0.94 in), while females can reach up to 30 mm (1.2 in).

Body and Snout Shape

This species has a slender build and a wide, truncate snout.

Tympani and Webbing

Its ear tympani are visible, and the feet have only rudimentary webbing.

Skin Texture

The skin on its back is tuberculate and covered in rounded warts, while the flanks and throat have finer granulation.

Male Vocal Sac

Males of this species have a vocal sac with a longitudinal slit located on the left side of the mouth.

Larval Size

Recorded larvae grow up to 17.2 mm (0.68 in) in length.

Endemic Range

This species is endemic to Borneo.

Distribution and Elevation

It is found in western and central Sarawak and Sabah in Malaysia, as well as adjacent western Kalimantan (Indonesia), occurring at elevations between 200–1,000 m (660–3,280 ft) above sea level.

Habitat

Ansonia minuta is terrestrial, and lives in lowland rainforests.

Breeding and Larval Development

It breeds in small, rocky streams that have clear, flowing water, and larvae develop within these streams.