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Quedenfeldtia trachyblepharus (BOETTGER, 1874)

IUCN Red List - Quedenfeldtia trachyblepharus - Near Threatened, NT

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Higher TaxaSphaerodactylidae, Gekkota, Sauria, Squamata (lizards: geckos)
Common NamesE: Atlas Day Gecko
G: Atlas-Taggecko 
SynonymGymnodactylus trachyblepharus BOETTGER 1873: 138
Gymnodactylus trachyblepharus — BOULENGER 1885: 34
Gymnodactylus trachyblepharus — LOVERIDGE 1936: 48
Quedenfeldtia trachyblepharus — LOVERIDGE 1947: 67
Quedenfeldtia trachyblepharus — WERMUTH 1965: 157
Quedenfeldtia trachyblepharus — ARNOLD 1990: 759
Quedenfeldtia trachyblepharus — KLUGE 1993
Quedenfeldtia trachyblepharus — SCHLEICH, KÄSTLE & KABISCH 1996: 246
Quedenfeldtia trachyblepharus — SINDACO & JEREMČENKO 2008 
DistributionSW Morocco (Mogador/Atlas Mountains; elevation 1200 to 4000 m)

Type locality: Djebel Hadid, near Mogador, Morocco.  
Reproductionoviparous; the reproductive period for the geckos is from March to June (Bouazza et al., 2016). 
TypesHolotype: SMF 8201 (fide Arnold 1990); oher types: BMNH 1946.8.20.4 
DiagnosisDiagnosis: Usually 24 or 25 presacral vertebrae (91% of cases, n =46); proximal autotomic caudal vertebrae with long, backwardly directed transverse processes (Fig. 2); first upper labial scale usually reaching nostril, or only separated by a narrow rim, and often fused to lower postnasal scale (Fig. 1); cloacal tubercles large and prominent, especially in males;
Coloration and sexual dimorphism: strong sexual dichromatism, males being pale with many red or dark brownish spots that are often more frequent or darker, or both, on the flanks and sides of the neck, and frequently the head as well; females dark brownish or greyish with darker markings that often form longitudinal series; no prominent spots in shoulder area; dark colouring on posterior underside of males not extending to lower hind limbs. (Arnold 1990)

Variation. Considerable variation in pattern and colour. Females may have two or four series of irregular dark flecks on body, but sometimes have a longitudinal pattern of short dark marks alternating with pale ones; sometimes instead there are more irregular small blackish marks. In life, belly is often yellow green and iris grey-brown (Hoogmoed, 1974, Arnold 1990).

Description: Loveridge 1947: 67. 
CommentType species: Gymnodactylus trachyblepharus BOETTGER 1873 is the type species of the genus Quedenfeldtia BOETTGER 1883.

Variation: Orange, yellow, and white variants were found in approximately equal proportions in both sexes, and in juveniles and adults (Blouin-Demers et al. 2013).

Elevation: Maybe the gecko with the highest vertical distribution.

Sympatry: Above 2500 m: Atlantolacerta andreanszkyi. Below 2500 m: Podarcis vaucheri, Scelarcis perspicillata, Tarentola mauritanica, Psammodromus algirus, Timon tangitanus and Agama impalearis (Bons & Geniez, 1996; Schleich et al., 1996). 
  • Arnold, E.N. 1990. The two species of Moroccan day geckoes, Quedenfeldtia (Reptilia: Gekkonidae). Journal of Natural History 24 (3): 757-762 - get paper here
  • Avella, Ignazio; Nahla Lucchini, Urtzi Enriquez-Urzelai, Frederico Corga & Fernando Martínez-Freiría 2019. New records for the reptile fauna of the Tichka plateau (western High Atlas, Morocco). Bol. Asoc. Herpetol. Esp. 30 (2) - get paper here
  • Barata, Mafalda; Ana Perera, D. James Harris, Arie van der Meijden, Salvador Carranza, Francisco Ceacero, Enrique García-Muñoz, Duarte Gonçalves, Sérgio Henriques, Fátima Jorge, Jonathan C. Marshall, Luis Pedrajas and Pedro Sousa 2011. New observations of amphibians and reptiles in Morocco, with a special emphasis on the eastern region. Herpetological Bulletin (116): 4 - get paper here
  • Barts, M. & Hulbert, F. 2004. Die Geckos der Welt. Draco 5 (18): 4-17 - get paper here
  • Blouin-Demers, Gabriel; Olivier Lourdais, Abdellah Bouazza, Catherine Verreault, Hassan El Mouden and Tahar Slimani. 2013. Patterns of throat colour variation in Quedenfeldtia trachyblepharus, a high-altitude gecko endemic to the High Atlas Mountains of Morocco. Amphibia-Reptilia 34 (4): 567-572 - get paper here
  • Boettger, O. 1874. Reptilien von Marocco und von den canarischen Inseln. Abh. senckenb. naturf. Ges. (Frankfurt) 9: 121-191 [1873] - get paper here
  • Boettger, O. 1883. Die Reptilien und Amphibien von Marocco. II. Abh. senckenb. naturf. Ges. 13: 93-146 - get paper here
  • Bons, J. 1959. Les lacertiliens du sud-ouest Marocain; systematique, repartition geographique, ethologie, ecologie. Instit. Sci. Cherifien, Rabat, Trav. (Ser. Zool.) no. 18 130 pp.
  • Bouazza, A., Slimani, T., El Mouden, H., Blouin-Demers, G. and Lourdais, O. 2016. Thermal constraints and the influence of reproduction on thermoregulation in a high-altitude gecko (Quedenfeldtia trachyblepharus). Journal of Zoology, doi:10.1111/jzo.12353 - get paper here
  • Boulenger, G.A. 1885. Catalogue of the lizards in the British Museum (Nat. Hist.) I. Geckonidae, Eublepharidae, Uroplatidae, Pygopodidae, Agamidae. London: 450 pp. - get paper here
  • Boulenger, George A. 1891. Catalogue of the reptiles and batrachians of Barbary (Morocco, Algeria, Tunisia), based chiefly upon the notes and collections made in 1880-1884 by M. Fernand Lataste. Tr. Zool. Soc. 13: 93-164
  • GROSSMANN, W. 2019. Observations on a lizard community in the High Atlas, Morocco Sauria 41 (1): 30 - 38 - get paper here
  • Harris, David James; Daniela Rosado, Raquel Xavier and Daniele Salvi. 2017. New genetic lineages within Moroccan day geckos Quedenfeldtia (Sphaerodactylidae) revealed by mitochondrial and nuclear DNA sequence data. Amphibia-Reptilia 38 (1): 97 - 101 - get paper here
  • Knappe, C.M. 2005. Beobachtung eines Rivalenkampfes bei Quedenfeldtia trachyblepharus im Hohen Atlas. Elaphe 13 (1): 64-68
  • Loveridge, A. 1936. African reptiles and amphibians in the Field Museum of Natural History. Zool. Ser. Field Mus. Nat. Hist., Chicago, 22 (1): 1-122 - get paper here
  • Loveridge, A. 1947. Revision of the African lizards of the family Gekkondiae. Bull. Mus. Comp. Zool. Harvard 98: 1-469 - get paper here
  • Malkmus, R. 1981. Zur vertikalen Verbreitung einiger marokkanischer Amphibien und Reptilien (Oukaïmeden - Hoher Atlas). Salamandra 17 (1-2): 206-207 - get paper here
  • Malkmus, R. 1983. Herpetologische Exkursionen im Hohen Atlas/Marokko. Herpetofauna 5 (27): 8-12 - get paper here
  • Martínez del Mármol, Gabriel; D. James Harris, Philippe Geniez, Philip de Pous, and Daniele Salvi 2019. Amphibians and Reptiles of Morocco. Edition Chimaira, Frankfurt am Main, Germany, 478 pp - get paper here
  • Mertens, R. 1967. Die herpetologische Sektion des Natur-Museums und Forschungs-Institutes Senckenberg in Frankfurt am Main nebst einem Verzeichnis ihrer Typen. Senckenbergiana Biologica 48: 1-106 - get paper here
  • Mouadi, Jalal; Abderrafea Elbahi, Omar Er-rguibi, El-Mustapha Laghzaoui, Abdessamad Aglagane, Ahmed Aamiri, El Hassan El Mouden, Mohamed Aourir 2021. First record of abnormal tail regeneration in the Moroccan endemic gecko Quedenfeldtia trachyblepharus (Boettger, 1874) and the family Sphaerodactylidae. Herpetology Notes 14: 959-963
  • Schleich, H.H., Kästle,W., Kabisch, K. 1996. Amphibians and Reptiles of North Africa. Koeltz, Koenigstein, 627 pp.
  • Schlüter, U. 2005. Quedenfeldtia trachyblepharus (BOETTGER, 1874) - Atlas-Taggecko. Reptilia (Münster) 10 (54): 51-53 - get paper here
  • Sindaco, R. & Jeremcenko, V.K. 2008. The reptiles of the Western Palearctic. Edizioni Belvedere, Latina (Italy), 579 pp. - get paper here
  • Stuart‐Fox, D., Aulsebrook, A., Rankin, K.J., Dong, C.M. and McLean, C.A. 2020. Convergence and divergence in lizard colour polymorphisms. Biological Reviews - get paper here
  • Werner,F. 1931. Ergebnisse einer zoologischen Forschungsreise nach Marokko. III. Unternommen 1930 mit Unterstützung der Akademie der Wissenschaften in Wien von Franz Werner und Richard Ebner. III. Amphibien und Reptilien. Sitzungsber. Akad. Wiss. Wien Mathem.-Naturw., Sect. 1, 140: 272-318 - get paper here
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