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Alopoglossus festae

Alopoglossus festae

without rank: Amniotes (Amniota)
without rank: Sauropsida
Superordinate : Scale lizards (Lepidosauria)
Order : Scale reptiles (Squamata)
Superfamily : Gymnophthalmoidea
Family : Alopoglossidae
Scientific name
Pellegrino , Rodrigues , Yonenaga-Yassuda & Sites , 2001

The Alopoglossidae are exclusively in the New World occurring from Costa Rica to Bolivia and Brazil family of Squamata (Squamata). The family is most species-rich in Colombia.


The group was introduced in 2001 and originally belonged to the Zwergtejus (Gymnophthalmidae) as the subfamily Alopoglossinae . Since, according to a phylogenetic study, they are based on a clade of Dwarf Tejus and Tejus (Teiidae), it became an independent family in April 2016.


Diagnostic features that distinguish the Alopoglossidae from Tejus and Zwergtejus are an open Meckel canal on the lower jaw (in it the Meckel cartilage ) and the tubular frontal bone . The family is mainly characterized by the special shape of the tongue, which is covered with folds (plicae) that converge in the center forwards (anteromedial) instead of flaky papillae. Further characteristics that the family has in common with some relatives are: ear openings with retracted eardrums, movable eyelids, all legs with five complete, clawed toes, the (divided) nasal scales separated from each other by the rostral and frontonasal scales in between. These are largely original plesiomorphic features that indicate the basic position of the family. The genera differ in Alopoglossus keeled scales, smooth scales on the forelimbs in Ptychoglossus and rhomboid, laterally roof-shaped overlapping dorsal scales compared to smooth, parallel- sided scales.

Genera and species

Image from the first description of Alopoglossus viridiceps : A, B paratype : juvenile male, SVL = 38.67 mm. C, D paratype: juvenile female, SVL = 33.80 mm. E, F paratype: young animal, SVL = 31.59 mm. G, H: A. festae , female, SVL = 46.89 mm.


  • N. Goicoechea, DR Frost, I. De la Riva, KCM Pellegrino, J. Sites, MT Rodrigues, JM Padial: Molecular systematics of teioid lizards (Teioidea / Gymnophthalmoidea: Squamata) based on the analysis of 48 loci under tree-alignment and similarity alignment. In: Cladistics. March 2016, doi: 10.1111 / cla.12150

Individual evidence

  1. KCM Pellegrino, MT Rodrigues, Y. Yonenaga-Yassuda, JW Sites: A molecular perspective on the evolution of microteiid lizards (Squamata, Gymnophthalmidae), and a new classification for the family. In: Biological Journal of the Linnean Society. Volume 74, No. 3, pp. 315-338. ( ( Memento from August 18, 2018 in the Internet Archive ))
  2. ^ Alopoglossidae in The Reptile Database
  3. ^ Dennis M. Harris: Review of the Teiid Lizard Genus Ptychoglossus. In: Herpetological Monographs. Volume 8, 1994, pp. 226-275. ( online at JSTOR )
  4. Omar Torres-Carvajal, Simón E. Lobos: A new species of Alopoglossus lizard (Squamata, Gymnophthalmidae) from the tropical Andes, with a molecular phylogeny of the genus. In: Zookeys. Volume 410, 2014, pp. 105-120. doi: 10.3897 / zookeys.410.7401 (open access)
  5. O. Torres-Carvajal, SE Lobos: A new species of Alopoglossus lizard (Squamata, Gymnophthalmidae) from the tropical Andes, with a molecular phylogeny of the genus. In: ZooKeys . Volume 410, 2014, pp. 105-120. doi: 10.3897 / zookeys.410.7401
  6. ^ Alopoglossus in The Reptile Database
  7. Ptychoglossus in Reptile Database