Latin name:Fejervarya limnocharis
Vietnamese Name:Nhái
Family:Dicroglossidae
Order:Anura
Class (Group):

Identification Features:

Snout:

  • Long and pointed, longer than the eye (Snout Length: 8.69 mm, Eye Diameter: 5 mm).
  • Blunt rostral ridge.
  • Slightly concave and oblique loreal region.
  • Round nostrils, closer to the tip of the snout than to the eye.
  • Inter-nostril distance wider than interorbital distance.
  • Eye diameter larger than the upper eyelid width and the interorbital distance (Eye Diameter: 5 mm, Upper Eyelid Width: 4.38 mm, Interorbital Distance: 4.28 mm).
  • Tympanum distinct, with a diameter approximately two-thirds of the eye diameter (Tympanum Diameter: 3.52 mm).
  • Vomerine teeth arranged in two V-shaped rows.
  • Tongue long, notched posteriorly.
  • Males possess two vocal sacs.

Limbs:

  • Fingers completely free.
  • Webbing present on the hind feet, extending approximately one-third of the toe length.
  • Long inner metatarsal tubercle, small outer metatarsal tubercle.
  • When the hind limbs are folded along the body, the tibiotarsal joint reaches the middle of the eye, and the tarsometatarsal joint reaches the tip of the snout.
  • Distinct dermal ridge above the tympanum.
  • Dorsum marked with numerous short skin folds.

Coloration:

  • Coloration varies among individuals.
  • Dorsal surface of the head and back are moss green or light brown.
  • A dark V-shaped marking is usually present between the eyes.
  • A light stripe may be present along the dorsal midline, extending from the tip of the snout to the anterior of the cloaca, sometimes widening on the head but narrowing posteriorly.
  • Ventral surface and underside of limbs are white.
  • Hind limbs exhibit dark transverse bands.

Biology and Ecology:

  • Commonly found in humid environments within evergreen forests, rice fields, along streams, and in gardens.
  • The breeding season typically extends from March to June, or later depending on the region.
  • During the day, they take shelter in depressions in the ground or crevices, emerging to forage at dusk.
  • They are adept jumpers, capable of leaping approximately 2 meters, and are also good swimmers.
  • Their primary food sources are ants, termites, and terrestrial insects.

Distribution:

Vietnam:

  • Widespread throughout Vietnam, from north to south, at low to moderate altitudes.

Global:

  • Afghanistan, Pakistan, India, Nepal, Sri Lanka, Bangladesh, China, Myanmar, Laos, Thailand, Cambodia, Philippines, Indonesia, Japan.