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Trioceros incornutus (LOVERIDGE, 1932)

IUCN Red List - Trioceros incornutus - Least Concern, LC

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Higher TaxaChamaeleonidae, Sauria, Iguania, Squamata (lizards)
Subspecies 
Common NamesE: Ukinga hornless chameleon 
SynonymChamaeleon incornutus LOVERIDGE 1932: 380
Chamaeleon incornutus — DAAN & HILLENIUS 1966: 128
Chamaeleo (Trioceros) incornutus — NECAS 1999: 281
Trioceros incornutus — TILBURY & TOLLEY 2009
Trioceros incornutus — TILBURY 2010: 632
Trioceros incornutus — SPAWLS et al. 2018: 290 
DistributionTanzania (Poroto Mts., Rungwe Mts., Ukinga Mts.)

Type locality: Madehani, Ukinga Mts., Tanzania.  
Reproductionovoviviparous. 
TypesHolotype: MCZ 31350 
DiagnosisDiagnosis: “No gular or ventral crest of enlarged scales, no beard- like gular scales, no horn-like processes in either sex, no fin-like dorsal crest. Well-developed occipital flaps fused in a short median suture behind the casque; a decidedly indistinct parietal crest forked anteriorly; a low dorsal crest comprised of sharply spinose scales (well separated or in groups of two or three followed by an interspace) from the nape to the base of the tail.” (Loveridge 1932: 380) 
Comment 
EtymologyNamed after L.: in- , prefix meaning not or without; cornu, horn; -utus/a/um, adlectival suffix: unhorned, denoting the absence of horns as compared with related species (Charles Klaver, pers. comm., 11 Jan 2023). 
References
  • Broadley, D. G. & HOWELL, K. M. 1991. A check list of the reptiles of Tanzania, with synoptic keys. Syntarsus 1: 1—70
  • Broadley, D.G.; Kelly, C.M.R. 1996. Geographical Distribution - Chamaeleo incornutus. African Herp News (25): 45-45 - get paper here
  • Daan, S. & Hillenius,D. 1966. Catalogue of the type specimens of amphibians and reptiles in the Zoological Museum, Amsterdam. Beaufortia 13: 117-144
  • Glaw, F. 2015. Taxonomic checklist of chameleons (Squamata: Chamaeleonidae). [type catalogue] Vertebrate Zoology 65 (2): 167–246 - get paper here
  • HILDENHAGEN, T. 2004. Chamäleons die unbekannten Wesen - Vorstellung von Chamaeleo (T.) incornutus, LOVERIDGE 1932. CHAMAELEO 14(2): 19-20. - get paper here
  • Loveridge, A. 1932. New reptiles and amphibians from Tanganyika Territory and Kenya Colony. Bull. Mus. comp. Zool. Harvard 72: 375-387 - get paper here
  • Necas, Petr 1999. Chameleons - Nature's Hidden Jewels. Edition Chimaira, Frankfurt; 348 pp.; ISBN 3-930612-04-6 (Europe)<br />ISBN 1-57524-137-4 (USA, Canada)
  • Pietersen, Darren, Verburgt, Luke & Davies, John 2021. Snakes and other reptiles of Zambia and Malawi. Struik Nature / Penguin Random House South Africa, 376 pp., ISBN 9781775847373
  • Schmidt, W.; Tamm, K. & Wallikewitz, E. 2010. Chamäleons - Drachen unserer Zeit. Natur und Tier Verlag, 328 pp. [review in Reptilia 101: 64, 2013] - get paper here
  • Spawls, S.; Howell, K.; Drewes, R.C. & Ashe, J. 2002. A field guide to the reptiles of East Africa. Academic Press, 543 pp. [reviews in HR 34: 396 and Afr. J. Herp. 51; 147] - get paper here
  • Spawls, Steve; Kim Howell, Harald Hinkel, Michele Menegon 2018. Field Guide to East African Reptiles. Bloomsbury, 624 pp. - get paper here
  • Tilbury, C. 2010. Chameleons of Africa: An Atlas, Including the Chameleons of Europe, the Middle East and Asia. Edition Chimaira, Frankfurt M., 831 pp.
  • Tilbury, C. R. & Tolley, Krystal A. 2009. A re-appraisal of the systematics of the African genus Chamaeleo (Reptilia: Chamaeleonidae). Zootaxa 2079: 57–68 - get paper here
 
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