Species of Thailand

Big-eared toad

Ingerophrynus macrotis, George Albert Boulenger, 1887

(In Thai: คางคกหัวราบ)

Ingerophrynus macrotis is a toad species of the Bufonidae family, which is found throughout most of monsoonal mainland Southeast Asia and in northeast India. It is native to Cambodia, Laos, Malaysia, Myanmar, Thailand, Vietnam. Its presence in China is uncertain.

Characteristics

Crown without bony ridges; snout short, truncated; interorbital space flat, as broad as the upper eyelid; tympanum very distinct, vertically oval, quite as large as the eye and close to it. First finger a little longer than second; toes barely half webbed, with irregular spinose tubercles beneath, from which the so-called subarticular are hardly distinguishable; two small metatarsal tubercles; no tarsal fold. The tarso-metatarsal tubercle reaches the tympanum or the eye. Upper parts studded with round tubercles of various sizes; parotoids prominent, subcircular. Grey-brown or olive above, with irregular dark brown spots, vertical bars on the upper lip, and cross bands on the limbs; lower surfaces dirty white, with darker spots; the male's throat brown. Male with a subgular vocal sac and, during the nuptial period, black rugosities on the inner fingers.

Distribution and habitat

In Southeast Asia it is found up to 300 m above sea level, in the northwestern part of its range it is found up to an altitude of 2350 m. It is generally associated with both open-canopy and closed deciduous forest types. It breeds explosively in rain-pools. It is able to survive in relatively degraded forest.

Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, subtropical or tropical moist montane forests, subtropical or tropical moist shrubland, and intermittent freshwater marshes.

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Scientific classification

Kingdom
Animalia
Phylum
Chordata
Class
Amphibia
Order
Anura
Family
Bufonidae
Genus
Ingerophrynus
Species
Ingerophrynus macrotis

Common names

  • English:
    • Big-eared toad
    • Large-eared toad
    • Flat-headed toad
  • Thai:
    • คางคกหัวราบ
    • คางคกป่า
    • คางคกแคระ

Synonyms

  • Bufo macrotis, George Albert Boulenger (1887)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Photos

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Ingerophrynus macrotis (juvenile)

Range Map

Distribution map of Big-eared toad, Ingerophrynus macrotis in Thailand
  • Huai Kha Khaeng Wildlife Sanctuary
  • Kaeng Krachan National Park
  • Mae Wong National Park
  • Nong Ya Plong District, Phetchaburi
  • Surin Islands
Range map of Ingerophrynus macrotis in Thailand