You are here » home search results Brookesia confidens

Brookesia confidens GLAW, KÖHLER, TOWNSEND & VENCES, 2012

IUCN Red List - Brookesia confidens - Near Threatened, NT

Can you confirm these amateur observations of Brookesia confidens?

Add your own observation of
Brookesia confidens »

Find more photos by Google images search: Google images

Higher TaxaChamaeleonidae (Brookesiinae), Sauria, Iguania, Squamata (lizards)
Common Names 
SynonymBrookesia confidens GLAW, KÖHLER, TOWNSEND & VENCES 2012
Brookesia (Evoluticauda) confidens — GLAW et al. 2021 
DistributionN Madagascar (Antsiranana)

Type locality: trail to the ‘‘Petit Tsingy and Grotte des Chauves-Souries’’, 12°57’25’’S, 49°07’06’’E, 90 m elevation, Ankarana National Park, Antsiranana Province, northern Madagascar.  
Reproductionoviparous (phylogenetic imputation, fide Zimin et al. 2022) 
TypesHolotype: ZSM 2150/2007 (FGZC 1196), adult male (hemipenes incompletely everted), collected on 1 March 2007 by P. Bora, H. Enting, F. Glaw, A. Knoll, and J. Köhler. Paratype: ZFMK 92939, female, ZSM, UADBA (ZFMK paratype originally published as ZSM 1511/2008). 
DiagnosisDiagnosis: A member of the Brookesia minima group based on small body size (SVL,23 mm) and molecular phylogenetic relationships. Brookesia confidens is distinguished from other members of the group as follows: from B. dentata by probably smaller adult body size (no measurements of male B. dentata available), and absence of a supranasal cone (vs. presence); from B. exarmata by the absence of a supranasal cone (vs. presence); from B. karchei by a smaller adult body size (female SVL 20.6–22.6 mm vs. 30.7 mm; no measurements of clearly identified males available for B. karchei), and absence of a supranasal cone (vs. presence); from B. minima by a very narrow hemipenis (vs. balloon-like); from B. peyrierasi by generally smaller adult body size(male SVL 18.3– 20.1 mm vs. 19.7–22.4 mm), the absence of a supranasal cone (vs. presence), absence of a supraocular cone (vs. presence), and very narrow ornamentless hemipenis (vs. massive, bilobed hemipenis with four spines per lobe); from B. ramanantsoai by a smaller adult body size (male SVL 18.3–20.1 mm vs. 21.7 mm), absence of a supranasal cone (vs. presence), absence of a supraocular cone (vs. presence in some specimens), and hemipenis very narrow (vs. balloon-like); from B. tuberculata by the absence of a supranasal cone (vs. presence), absence of a supraocular cone (vs. presence), and hemipenis very narrow with pustules on apex (vs. wider, with crown-like apical structure). The new species is most similar to B. tristis but differs from this species by indistinct and short parasagittal crests (vs. distinct) and by 13 dorsolateral pointed tubercles (vs. 11), and ornamentless apical region of hemipenis (vs. spine-like papillae on apex). For a distinction from B. desperata and B. micra, described below, see the diagnoses of these species. Referencing a fragment of the 16S rRNA gene, B. confidens shows an uncorrected pairwise divergence of 6.7% to its sister species B. tuberculata, and divergences .9% to all other species of the B. minima group. When stressed, individuals can quickly change colour and display a broad pale vertebral stripe contrasting with the darker flanks. 
CommentAbundance: only known from its original description (Meiri et al. 2017).

Distribution: see map in Glaw et al. 2021: 5 (Fig. 3) 
EtymologyThe species epithet is an adjective derived from the Latin ‘‘confidens’’ meaning ‘‘confident’’, ‘‘trusting’’. The known range of the species is supposedly a well protected nature reserve with apparently limited habitat destruction. Furthermore, this area might benefit from natural protection by the tsingy limestone formations which are difficult to access, thus giving hope for the species’ survival. 
  • Glaw F, Köhler J, Townsend TM, Vences M 2012. Rivaling the World’s Smallest Reptiles: Discovery of Miniaturized and Microendemic New Species of Leaf Chameleons (Brookesia) from Northern Madagascar. PLoS One 7 (2): e31314. doi:10.1371/journal.pone.0031314 - get paper here
  • Glaw, F. 2015. Taxonomic checklist of chameleons (Squamata: Chamaeleonidae). [type catalogue] Vertebrate Zoology 65 (2): 167–246 - get paper here
  • Glaw, F., Köhler, J., Hawlitschek, O. et al. 2021. Extreme miniaturization of a new amniote vertebrate and insights into the evolution of genital size in chameleons. Sci Rep 11: 2522 - get paper here
  • Kwet, A. 2012. Die kleinsten Reptilien der Welt - neu entdeckte Zwergchamäleons aus Madagaskar. Reptilia (Münster) 17 (95): 4-6 - get paper here
  • Kwet, Axel 2013. Liste der im Jahr 2012 neu beschriebenen Reptilien. Terraria-Elaphe 2013 (3): 52-67 - get paper here
  • Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions - get paper here
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
External links  
Is it interesting? Share with others:

As link to this species use URL address:

without field 'search_param'. Field 'search_param' is used for browsing search result.

Please submit feedback about this entry to the curator