Indotyphlidae

Indotyphlidae
Systematics
Sub-stem : Vertebrates (vertebrata) Superclass : Jaw mouths (Gnathostomata) Row : Land vertebrates (Tetrapoda) without rank: Amphibians (Lissamphibia) Order : Sneak amphibian (Gymnophiona) Family : Indotyphlidae
Scientific name
Indotyphlidae
Lescure , Renous & Gasc , 1986

The Indotyphlidae are a family of the sneak amphibians (Gymnophiona) that occurs in India, Africa and on the larger Inner Islands of the Seychelles .

features

Like all sneak amphibians, the Indotyphlidae are worm-like amphibians without limbs and with a strongly receding tail. They differ from other sneak amphibians in their imperfect stapes (an ossicle ), the inner row of teeth with double-pointed teeth in the lower jaw and the position of the eyes on the border between the scaly bone and maxillopalatine. They are either oviparous (laying eggs) or viviparous (giving birth to life). All viviparous Indotyphlidae are scaly and they lack the secondary annuli. The annuli are circumferential skin folds through which the sneak amphibians are curled and which in turn can be divided into primary, secondary and tertiary annuli.

Phylogenetically, they are defined as those sneak amphibians more closely related to Hypogeophis rostratus than to Siphonops annulatus or Dermophis mexicanus .

Genera and species

There are seven genera and about 20 species:

• Genus Gegeneophis
  • Gegeneophis carnosus
  • Gegeneophis danieli
  • Gegeneophis goaensis
  • Gegeneophis krishni
  • Gegeneophis madhavai
  • Gegeniophis mhadeiensis
  • Gegeneophis pareshi
  • Gegeneophis primus
  • Gegeneophis ramaswamii
  • Gegeneophis seshachari
  • Gegeneophis tejaswini
• Genus Grandisonia
  • Grandisonia alternans
  • Grandisonia brevis
  • Grandisonia larvata
  • Grandisonia sixellensis
• Genus Hypogeophis
  • Hypogeophis montanus
  • Hypogeophis pti
  • Hypogeophis rostratus
• Genus Idiocranium
  • Idiocranium russeli
• Genus Indotyphlus
  • Indotyphlus battersbyi
  • Indotyphlus maharashtraensis
• Genus Praslinia
  • Praslinia cooperi
• Genus Sylvacaecilia
  • Sylvacaecilia grandisonae

Systematics

Within the sneak amphibians, the Indotyphlidae are the sister group of a common clade of Dermophiidae and Siphonopidae , all three families together are in a sister group relationship to a clade of Typhlonectidae and Caeciliidae . (See sneak amphibian: section taxonomy )

literature

• Wilkinson, M., San Mauro, D., Sherratt, E., Gower, DJ (2011): A nine-family classification of caecilians (Amphibia: Gymnophiona). Zootaxa ISSN  1175-5334 online

Individual evidence

1. ↑ Rachunliu G. Kamei, Diego San Mauro, David J. Gower, Ines Van Bocxlaer, Emma Sherratt, Ashish Thomas, Suresh Babu, Franky Bossuyt, Mark Wilkinson, SD Biju: Discovery of a New Family of Amphibians from Northeast India with Ancient Links to Africa. In: Proceedings of the Royal Society B , 2012. doi : 10.1098 / rspb.2012.0150 , pp. 1-6.

Web links

• List of species of the family Indotyphlidae at Amphibiaweb