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Bronchocela orlovi HALLERMANN, 2004

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Higher TaxaAgamidae (Draconinae), Sauria, Iguania, Squamata (lizards)
Subspecies 
Common NamesE: Orlov’s Forest Lizard 
SynonymBronchocela orlovi HALLERMANN 2004
Bronchocela orlovi — NGUYEN et al. 2009
Bronchocela orlovi — AMARASINGHE et al. 2022 
DistributionS Vietnam (Gia Lai); only known from type locality. Its distribution is probably limited to the northern part of Tai Nguyen Plateau in the Annam Mountains.

Type locality: at Buoenloy, Ankhe District, Gia Lai Province, southern Vietnam (14°20’ N, 108°36’ E) 750 m elevation, collected by N. L. Orlov, May 1993.  
Reproductionoviparous 
TypesHolotype: ZISP 22827, Zoological Institute Russian Academy of Science, St. Petersburg 
DiagnosisDiagnosis: A Bronchocela specimen with a snoutvent length of 109.6 mm, tail length 372.0 mm relatively large feebly keeled dorsolateral and lateral scales, with 43 scale rows around midbody. The new species is most similar to B. jubata and an unspecified species from Cambodia (Bronchocela sp.), but differs from both in having fewer scales on the canthus rostralis between nasal scale and anterior border of orbital cavity (3 – 4 vs. 5 – 6, Fig. 3) and in having no small scale beween nasal scale and first scale of canthus rostralis. The keels of the scales of the uppermost scale row, next to dorsal crest, are directed parallel to the dorsal crest (directed upwards in jubata and Bronchocela sp.). Dorsal and lateral scales are about two thirds of the length of the ventrals (in jubata about half of the ventrals). It differs from other congeners by having lower number of scales around midbody (cristatella 60 – 120; marmorata 52 – 73, celebensis 62 – 66, hayeki 58 – 74), from danieli in having ventrals up to 2 times larger than dorsals or laterals (vs. 5 times larger), from smaragdina in having fifths toe longer than fourth finger and relatively thicker legs. 
CommentAbundance: only known from the type locality (Meiri et al. 2017). This is one of the species called 'lost' and 'rediscovered' by Lindken et al. 2024. 
EtymologyNamed after Russian herpetologist Nikolai Orlov. 
References
  • AMARASINGHE, ; A.A. THASUN; IVAN INEICH, AWAL RIYANTO, JAKOB HALLERMANN, NOVIAR ANDAYANI, A. ABINAWANTO, JATNA SUPRIATNA 2022. Taxonomy and distribution of a common arboreal lizard, Bronchocela jubata Duméril & Bibron, 1837 (Reptilia: Agamidae), with designation of its lectotype from Java, Indonesia. Zootaxa 5150 (1): 065–082 - get paper here
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Bobrov V. V. 2017. LIZARDS (REPTILIA, SAURIA) FROM VIETNAM IN THE HERPETOLOGICAL COLLECTION OF THE ZOOLOGICAL MUSEUM OF MOSCOW UNIVERSITY. 3. GENUS BRONCHOCELA (FAMILY AGAMIDAE). [in Russian] Current Studies in Herpetology 17 (3-4): 198-202; DOI: 10.18500/1814-6090-2017-17-3-4-198-202. - get paper here
  • GRISMER, L. LEE; P.L. WOOD, JR., CHEOL HAENG LEE, EVAN S. H. QUAH, SHAHRUL ANUAR, EHWAN NGADI & JACK W. SITES, JR. 2015. An integrative taxonomic review of the agamid genus Bronchocela (Kuhl, 1820) from Peninsular Malaysia with descriptions of new montane and insular endemics. Zootaxa 3948 (1): 001–023 - get paper here
  • Hallermann, J. 2004. A new species of the genus Bronchocela from the tropical rain forest of southern Vietnam. Russ. J. Herpetol. 11 (1): 30-34 - get paper here
  • Hallermann, J. 2005. A taxonomic review of the genus Bronchocela (Squamata: Agamidae) with description of a new species from Vietnam. Russ. J. Herpetol. 12 (3): 167-182 - get paper here
  • Lindken T.; Anderson, C. V., Ariano-Sánchez, D., Barki, G., Biggs, C., Bowles, P., Chaitanya, R., Cronin, D. T., Jähnig, S. C., Jeschke, J. M., Kennerley, R. J., Lacher, T. E. Jr., Luedtke, J. A., Liu, C., Long, B., Mallon, D., Martin, G. M., Meiri, 2024. What factors influence the rediscovery of lost tetrapod species? Global Change Biology, 30: 1-18 - get paper here
  • Manthey U 2008. Agamid lizards of Southern Asia, Draconinae 1. Terralog 7, 160 pp.
  • 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
  • Nguyen, S.V., Ho, C.T. and Nguyen, T.Q. 2009. Herpetofauna of Vietnam. Chimaira, Frankfurt, 768 pp.
 
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