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Ichthyophis sumatranus

Asia·Oviparous·Western Sumatra, Indonesia

Ichthyophis sumatranus, commonly known as the Sumatra caecilian, is a species of amphibian endemic to Sumatra, Indonesia. This species is characterized by its dark brown coloration, distinct eyes with a white spot, and a subterranean lifestyle as an adult. Its primary threat is habitat loss due to the expansion of palm oil plantations.

Key Facts

  • Endemic to Sumatra, Indonesia.
  • Believed to inhabit tropical moist forests with a subterranean adult lifestyle.
  • Presumably oviparous with terrestrial eggs and aquatic larvae.
  • Adult males range from 176-273 MM, females from 205-285 MM.
  • Threatened by habitat conversion for palm oil plantations.
Ichthyophis sumatranus
Scientific Name
Ichthyophis sumatranus
Family
Ichthyophiidae
Habitat

Tropical Moist Forest, Subterranean

Physical Description
Ichthyophis sumatranus is a caecilian with a dark brown coloration on its dorsal side, featuring slightly lighter grooves, and a lighter brown on its ventral side. It possesses a distinct eye with a black iris surrounding a white lens, a white spot anterior to the eye, and a semicircular row of small cream glandules partially encircling the eye. The lips are cream-colored. Adults have a short tail, typically measuring 3–5 mm. Body width ranges from 6–10 mm, with 315–329 body folds and 7 tail folds.
Common Names

Sumatra Caecilian

Behavior
Adults are believed to have a subterranean lifestyle.
Threats

Conversion of Forest For Palm Oil Plantations

About Ichthyophis sumatranus

Ichthyophis sumatranus (Sumatra Caecilian)

Ichthyophis sumatranus, more commonly referred to as the Sumatra caecilian, is a species of amphibian native to the island of Sumatra in Indonesia. It belongs to the family Ichthyophiidae, a group of limbless, serpentine amphibians.

Description and Characteristics

The physical appearance of Ichthyophis sumatranus is characterized by its dark brown dorsal coloration with subtle lighter grooves, and a lighter brown ventral side. A notable feature is its distinct eye, which is encircled by a black iris and a prominent white lens, complemented by a white spot located in front of the eye and a series of small cream-colored glandules partly surrounding it. The lips are also cream-colored. Adult specimens exhibit a short tail, typically measuring between 3 to 5 millimeters in length, with body widths ranging from 6 to 10 millimeters. The species possesses numerous body folds, numbering between 315 to 329, and 7 tail folds.

Habitat and Lifestyle

While precise details about its distribution are not fully documented, Ichthyophis sumatranus is known to inhabit western Sumatra. It is believed to reside in tropical moist forests, where adults adopt a subterranean lifestyle. The reproductive strategy is presumed to be oviparous, with eggs laid terrestrially and larvae developing in an aquatic environment.

Conservation and Threats

The primary threat facing the Sumatra caecilian is the extensive conversion of its natural forest habitat for the development of palm oil plantations. Information regarding the species' presence within protected areas remains unknown, highlighting a need for further research and conservation efforts.

Source: Wikipedia ↗

Frequently Asked Questions

What is the Sumatra caecilian?

The Sumatra caecilian, scientifically known as Ichthyophis sumatranus, is a species of amphibian belonging to the Ichthyophiidae family. It is native to the island of Sumatra in Indonesia.

What does Ichthyophis sumatranus look like?

This caecilian has a dark brown coloration above with lighter grooves and a lighter shade of brown ventrally. It features distinct eyes with a black iris surrounding a white lens, a white spot in front of the eye, and cream-colored lips. Adults have a short tail and a maximal body width of up to 10 mm.

Where does the Sumatra caecilian live?

Ichthyophis sumatranus is found in western Sumatra, Indonesia. While its exact range is not precisely known, it is believed to inhabit tropical moist forests.

What is the habitat of Ichthyophis sumatranus?

Adult Sumatra caecilians are thought to lead a subterranean lifestyle within tropical moist forests. The species is presumed to lay terrestrial eggs from which aquatic larvae hatch.

What are the main threats to Ichthyophis sumatranus?

The most significant threat to the Sumatra caecilian is the conversion of its forest habitat for palm oil plantations. Information regarding its presence in protected areas is currently unknown.