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Malayodracon robinsonii (BOULENGER, 1908)

IUCN Red List - Malayodracon robinsonii - Near Threatened, NT
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Higher TaxaAgamidae (Draconinae), Sauria, Iguania, Squamata (lizards)
Subspecies 
Common NamesE: Robinson's Forest Dragon, Robinson's Anglehead Lizard
G: Robinsons Winkelkopfagame 
SynonymGonyocephalus robinsonii BOULENGER 1908: 65
Gonyocephalus robinsoni — SMITH 1922: 269
Gonocephalus robinsonii — SMEDLEY 1931: 110
Goniocephalus robinsoni — SMITH 1935: 133
Goniocephalus robinsoni — SLY 1976: 156
Gonocephalus robinsonii — WERMUTH 1967: 60
Gonocephalus robinsonii — MANTHEY & GROSSMANN 1997: 189
Gonocephalus robinsonii — MANTHEY & SCHUSTER 1999: 65
Gonocephalus robinsonii — CHAN-ARD et al. 1999: 102
Gonocephalus robinsonii — GRISMER 2011
Malayodracon robinsonii — DENZER et al. 2015 
DistributionWest Malaysia, Selangor, Pahang

Type locality: Summit of Gunong Tahan (5200 feet elevation), Selangor.  
Reproductionoviparous 
TypesHolotype: BMNH 1946.8.14.81 (previously BMNH 1906.2.28.8) 
DiagnosisDiagnosis: Medium sized lizard; males: SVL 115–158 mm, TL 285–320 mm; females: SVL 115–132 mm, TL 290–300 mm (type specimen, male, SVL 152 mm, TL 320 mm), TL up to 2.6 times SVL; body triangular in cross-section; no patagia; head large, elongated and pointed; bony protuberances on the occipital region; sharp canthus rostralis and rounded superciliary edge; tympanum exposed; antehumeral fold present, transverse gular fold absent; large gular sac; nuchal and dorsal crest continuous; no preanal or femoral pores. 
CommentType species: Gonyocephalus robinsonii BOULENGER 1908: 65 is the type species of the genus Malayodracon DENZER et al. 2015.

For a comparison of Malayodracon to other draconine genera see DENZER et al. 2015.

Reference images: see Uetz et al. 2024 for high-resolution reference images for this species. 
EtymologyThe species is named after the collector of the types, H.C. Robinson.

The name Malayodracon was chosen to express that the type and currently only known species of the genus is restricted to Malaysia (latinized malaya, male form malayo owing to the gender of the ending -dracon) and constitutes a genus belonging to the subfamily Draconinae (gr. drakon / δράκων; a serpent in Greek mythology; latinized dracon = engl. dragon). 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Boulenger, G.A. 1908. Report on the Gunong Tahan expedition, May - Sept. 1905.111. Fishes, batrachians and reptiles. J. Fed. Malay St. Mus., Singapore, 3: 61-69. - get paper here
  • Chan-ard,T.; Grossmann,W.; Gumprecht,A. & Schulz,K. D. 1999. Amphibians and reptiles of peninsular Malaysia and Thailand - an illustrated checklist [bilingual English and German]. Bushmaster Publications, Würselen, Gemany, 240 pp. [book review in Russ. J Herp. 7: 87] - get paper here
  • DENZER, WOLFGANG; ULRICH MANTHEY, KRISTIN MAHLOW & WOLFGANG BÖHME 2015. The systematic status of Gonocephalus robinsonii Boulenger, 1908 (Squamata: Agamidae: Draconinae). Zootaxa 4039 (1): 129–144 - get paper here
  • Goldberg, Stephen R. and L. Lee Grismer. 2014. Gonocephalus robinsonii (Robinson's anglehead lizard) reproduction. Herpetological Review 45 (4): 696-697 - get paper here
  • GRISMER, L. LEE; & EVAN S. H. QUAH 2019. An updated and annotated checklist of the lizards of Peninsular Malaysia, Singapore, and their adjacent archipelagos. Zootaxa 4545 (2): 230–248 - get paper here
  • Grismer, L.L. 2011. Lizards of Peninsular Malaysia, Singapore and their adjacent archipelagos. Edition Chimaira, Frankfurt, 728 pp. [review in Herp. Rev. 43: 155] - get paper here
  • Manthey, U. & Grossmann, W. 1997. Amphibien & Reptilien Südostasiens. Natur und Tier Verlag (Münster), 512 pp. (ISBN 3-931587-12-6) - get paper here
  • Manthey, U. & W DENZER 1992. Die Echten Winkelkopfagamen der Gattung Gonocephalus KAUP (Sauria: Agamidae) IV Gonocephalus mjoebergi SMITH, 1925 und Gonocephalus robinsonii BOULENGER, 1908. Sauria 14 (1): 15-19. - get paper here
  • Manthey,U. & SCHUSTER,N. 1999. Agamen, 2. Aufl. Natur und Tier Verlag (Münster), 120 pp. - get paper here
  • Smedley, N. 1932. Amphibians and reptiles from the Cameron Highlands, Malay Peninsula. Bull. Raffles Mus. 6: 105 - 123 [1931] - get paper here
  • Smith, M.A. 1922. On a collection of reptiles and batrachians from the mountains of Pahang, Malay Peninsula. J. Fed. Malay St. Mus., Singapore, 10: 263-282. - get paper here
  • Uetz, P.H.; Patel, M.; Gbadamosi, Z.; Nguyen, A.; Shoope, S. 2024. A Reference Database of Reptile Images. Taxonomy 4: 723–732 - get paper here
  • Welton, Luke J.;Cameron D. Siler, L. L. Grismer, Arvin C. Diesmos, Jack W. Sites andRafe M. Brown 2016. Archipelago-wide survey of Philippine forest dragons (Agamidae: Gonocephalus): multilocus phylogeny uncovers unprecedented levels of genetic diversity in a biodiversity hotspot. Biological Journal of the Linnean Society, DOI: 10.1111/bij.12878 - get paper here
 
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