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Isthmian alligator lizard

From Wikipedia, the free encyclopedia

Isthmian alligator lizard
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Family: Anguidae
Genus: Gerrhonotus
Species:
G. rhombifer
Binomial name
Gerrhonotus rhombifer
(W. Peters, 1876)
Synonyms
  • Gerrhonotus rhombifer
    W. Peters, 1876
  • Coloptychon rhombifer
    (W. Peters, 1876)[2]

The isthmian alligator lizard (Gerrhonotus rhombifer) is a species of lizard of the Anguidae family. G. rhombifer is found in both Costa Rica and Panama. Unlike many lizards near its habitat, individuals have lateral folds. They give birth to live young. Gerrhonotus rhombifer had not been seen for fifty years, prior to being rediscovered in 2000 near Golfito,[3] and is one of the rarest species of lizard in Costa Rica.[4]

Description

G. rhombifer is a broad-headed, long-bodied lizard, which is similar to Diploglossus monotropis. An adult measures from 35–50 centimetres (14–20 in) in total length, with the tail making up approximately two-thirds of the total length. The upper surface of the body is tan in color with black-edged brown crossbands, and does not have either orange or red markings.[5] C. rhombifer is short-limbed, and has movable eyelids.[6] A well-defined lateral fold, covering small scales, separates the ridges and rows of scales on the belly.[6] The only other species of lizards in Costa Rica that also have lateral folds are of the genus Mesapis.[5]

The isthmian alligator lizard is viviparous,[6] meaning that as with mammals, the females bear live young.[7]

Distribution and habitat

The isthmian alligator lizard lives in the lowland rainforests of Costa Rica,[5] and in western Panama.[8] G. rhombifer can mostly be found on land, but has also been found living in trees.[6]

References

  1. ^ Vargas Álvarez, J., Batista, A., Saborío, G., García Rodríguez, A., Ballesteros, E. & Acosta Chaves, V. 2013. Coloptychon rhombifer. The IUCN Red List of Threatened Species 2013: e.T203039A2758942. https://dx.doi.org/10.2305/IUCN.UK.2013-2.RLTS.T203039A2758942.en. Downloaded on 12 December 2018.
  2. ^ Tihen JA. 1949. "The genera of gerrhonotine lizards". American Midland Naturalist 41: 579-601. (Coloptychon rhombifer, new combination, p. 584).
  3. ^ "The Rain Forest Conservation Fund". Fundacion UdG / ProSur. Retrieved 14 May 2011.
  4. ^ "Une espèce redécouverte - Le lézard Coloptychon rhombifer". MSN News (in French). 27 October 2009. Archived from the original on 23 July 2011. Retrieved 14 May 2011.
  5. ^ a b c Savage, Jay M. [in French] (2002). The Amphibians and Reptiles of Costa Rica: A Herpetofauna between Two Continents, between Two Seas. Chicago: University of Chicago Press. pp. 532–533 of 954. ISBN 978-0-226-73538-2. Coloptychon rhombifer.
  6. ^ a b c d Munoz Chacon, Federico. "Coloptychon rhombifer (Peters 1876)" (in Spanish). darnis.inbio.ac.cr. Archived from the original on 19 July 2011. Retrieved 14 May 2011.
  7. ^ "Viviparous". BBC Nature. Retrieved 14 May 2011.
  8. ^ "Gerrhonotus rhombifer ". Reptile Database. Retrieved 14 May 2011.

Further reading

  • Boulenger GA. 1885. Catalogue of the Lizards in the British Museum (Natural History). Second Edition. Volume II. ... Anguidæ ... London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). xiii + 497 pp. + Plates I-XXIV. (Gerrhonotus rhombifer, pp. 276–277).
  • Peters W. 1876. "Neue Arten der Sauriergattung Gerrhonotus [New species of the lizard genus Gerrhonotus]". Monatsberichte der königlichen preussischen Akademie der Wissenschaften zu Berlin 1876: 297–300. (Gerrhonotus rhombifer, new species, pp. 298–300). (in German).
This page was last edited on 17 January 2024, at 01:37
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