Indotyphlus

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Indotyphlus
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Gymnophiona
Clade: Apoda
Family: Grandisoniidae
Genus: Indotyphlus
Taylor, 1960
Type species
Indotyphlus battersbyi
Taylor, 1960
Species

2 species (see text)

Indotyphlus is a small genus of caecilians in the family Grandisoniidae. [1] [2] [3] As caecilians in general, they superficially resemble earthworms. [3] The genus is endemic to the Western Ghats, India. [1] [4] [5] They are sometimes known as Battersby's caecilians. [1]

Contents

Description

Indotyphlus are small caecilians, with the largest specimen (a female Indotyphlus battersbyi ) measuring 24 cm (9.4 in) in total length. [5] The eyes are visible in sockets, instead of under bone. [3] [4] [5] Other diagnostic characters are absence of temporal fossae, mesethmoid not being exposed dorsally, presence of splenial teeth, secondary grooves, and scales, tentacular opening that is closer to the eye than to the external nostril, no unsegmented terminal shield, smallish narial plugs on tongue, absence of diastema between vomerine and palatine teeth, and absence of terminal keel. [4] [5]

Development is probably direct, without aquatic larvae. [5]

Habitat

The genus is unusual among caecilians in that both species have been recorded from relatively open, shallow-soiled areas with long dry season. [5]

Species

The genus contains two species: [1] [2] [6]

Binomial name and authorCommon name
Indotyphlus battersbyi Taylor, 1960Battersby's caecilian
Indotyphlus maharashtraensis Giri, Wilkinson, and Gower, 2004Humbarli caecilian, Maharashtra caecilian

Related Research Articles

Caecilian Order of amphibians

Caecilians are a group of limbless, vermiform or serpentine amphibians. They mostly live hidden in the ground and in stream substrates, making them the least familiar order of amphibians. Caecilians are mostly distributed in the tropics of South and Central America, Africa, and southern Asia. Their diet consists of small subterranean creatures such as earthworms.

Rhinatrematidae Family of amphibians

Rhinatrematidae is a family of caecilians, also known as the Neotropical tailed caecilians, American tailed caecilians. or beaked caecilians. They are found in the equatorial countries of South America.

<i>Uraeotyphlus</i> Genus of amphibians

Uraeotyphlus is a genus of caecilians in the family Ichthyophiidae. There are seven species in this genus, all of which are endemic to the Western Ghats of southwestern India. Previously, the genus has also been placed in its own monotypic family Uraeotyphlidae.

Caeciliidae Family of amphibians

Caeciliidae is the family of common caecilians. They are found in Central and South America. Like other caecilians, they superficially resemble worms or snakes.

Gegeneophis danieli, the Amboli caecilian or Daniel's caecilian, is a species of caecilians in the family Indotyphlidae. It was discovered from near Amboli in Western Ghats of Maharashtra.

Gegeneophis ramaswamii, common names Tenmalai caecilian, Tenmalai blind caecilian, Ramaswami's caecilian, and forest caecilian is a species of caecilian. It is endemic to the southern portion of the Western Ghats, India, and is recorded from Kerala and Tamil Nadu. The specific name ramaswamii honours L. S. Ramaswami, an Indian herpetologist.

Battersby's caecilian is a slender species of caecilian endemic to the Western Ghats, India. It has a flesh-coloured body, making it look very much like a large earthworm.

Indotyphlus maharashtraensis is a species of caecilians described in 2004 by scientists of Bombay Natural History Society and the Natural History Museum, London. It is only the second species of Indotyphlus known to science, and only known from its type locality near Humbarli village, Satara District, in the Western Ghats of Maharashtra, India. Common names Humbarli caecilian, Maharashtra caecilian, and Konkan tail-less caecilian have been coined for it.

Caecilians of the Western Ghats

The Western Ghats in India are home to several species of caecilians (Gymnophiona). Caecilians are legless, burrowing amphibians which mostly live in leaf litter, loose soil, under rocks and decaying logs. They are also found in agricultural fields and only surface during the monsoon. The body is elongated and smooth with a slimy skin. The smaller caecilians superficially resemble earthworms while the larger ones are often mistaken for snakes. However, they can be told apart from earthworms by the presence of eyes, teeth and skeleton and from snakes by the lack of scales on skin. The eyes in caecilians are not well developed which is most likely to be because of their burrowing life style. They are considered as rare which is apparently due to their subterranean habits. To see them one has to search carefully and be at the right place and at the right time. There are few places where they are common, but, at least one species was reported to be abundant in agricultural fields in Kerala. The larger caecilians can resemble snakes, but their skin is smooth, not scaly.

<i>Atretochoana</i> Genus of amphibians

Atretochoana eiselti is a species of caecilian originally known only from two preserved specimens discovered by Sir Graham Hales in the Brazilian rainforest, while on an expedition with Sir Brian Doll in the late 1800s, but rediscovered in 2011 by engineers working on a hydroelectric dam project in Brazil. Until 1998, it was known only from the type specimen in the Naturhistorisches Museum, Vienna. Originally placed in the genus Typhlonectes in 1968, it was reclassified into its own monotypic genus, Atretochoana, in 1996. It was also found to be more closely related to the genus Potamotyphlus than Typholonectes. The species is the largest of the few known lungless tetrapods, and the only known lungless caecilian.

Brasilotyphlus is a genus of caecilians in the family Siphonopidae. It was considered monotypic, containing only the species Brasilotyphlus braziliensis. However, two recently described species, Brasilotyphlus guarantanus and Brasilotyphlus dubium, have been placed in this same genus. Both species have only been recorded from Brazilian Amazonia. This genus has also been suggested as paraphyletic to Microcaecilia.

<i>Microcaecilia</i> Genus of amphibians

Microcaecilia is a genus of caecilians in the family Siphonopidae.

Uraeotyphlus oommeni, sometimes known as the Oommen's caecilian, Oommen's Uraeotyphlus, or Bonnacord caecilian, is a species of caecilian in the family Ichthyophiidae. Within Uraeotyphlus, it belongs to the U. malabaricus group showing no obvious external differentiation between primary and higher-order annuli. This species is endemic to the Western Ghats and only known from its type locality, Bonaccord, Thiruvananthapuram district, southern Kerala. Very little is known about this species known only from a single specimen collected from an imprecise location.

Uraeotyphlus gansi, the Gansi caecilian, is a rare species of caecilian, endemic to the Western Ghats of India. It was discovered in the Kaakkaachi-Naalumukku area of the Kalakkad Mundanthurai Tiger Reserve. U. gansi was named after Carl Gans (1923–2009), a renowned herpetologist from Texas.

Gegeneophis is a genus of amphibians in the family Grandisoniidae. They are found in southern and northeastern India.

Siphonopidae Family of amphibians

The Siphonopidae are the family of common caecilians. They are found in Central and South America. Like other caecilians, they superficially resemble worms or snakes.

The Grandisoniidae are a family of common caecilians found in Africa, Seychelles and India. Like other caecilians, they superficially resemble worms or snakes. The family was formerly known as Indotyphlidae.

Gegeneophis primus is a species of caecilian discovered in Wynad district in the Western Ghats of Kerala, India. The species was described in 2012 by Ramachandran Kotharambath, Mark Wilkinson, and colleagues.

Chikila is a genus of amphibian in the order Gymnophiona (caecilians). It is the only genus within the family Chikilidae. All members of the genus are known from northeast India and Bangladesh.

References

  1. 1 2 3 4 Frost, Darrel R. "Indotyphlus Taylor, 1960". Amphibian Species of the World, an Online Reference. Version 6.0. American Museum of Natural History, New York. Retrieved 17 March 2022.
  2. 1 2 "Grandisoniidae". AmphibiaWeb. University of California, Berkeley. Retrieved 17 March 2022.
  3. 1 2 3 Vitt, Laurie J. & Caldwell, Janalee P. (2014). Herpetology: An Introductory Biology of Amphibians and Reptiles (4th ed.). Academic Press. pp. 447, 454.
  4. 1 2 3 Nussbaum, Ronald A. & Wilkinson, Mark (1989). "On the classification and phylogeny of caecilians (Amphibia: Gymnophiona), a critical review". Herpetological Monographs. 3: 1–42. doi:10.2307/1466984. JSTOR   1466984.
  5. 1 2 3 4 5 6 Giri, V. B.; M. Wilkinson & D. J. Gower (2004). "A new species of Indotyphlus Taylor (Amphibia: Gymnophiona: Caeciliidae) from the Western Ghats, India" (PDF). Zootaxa. 739: 1–19. doi:10.11646/zootaxa.739.1.1.
  6. "Indotyphlus Taylor, 1960". Integrated Taxonomic Information System.