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Acanthosaura aurantiacrista TRIVALAIRAT, KUNYA, CHANHOME, SUMONTHA, VASARUCHAPONG, CHOMNGAM & CHIANGKUL, 2020

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Higher TaxaAgamidae (Draconinae), Sauria, Iguania, Squamata (lizards)
Subspecies 
Common Names 
SynonymAcanthosaura aurantiacrista TRIVALAIRAT, KUNYA, CHANHOME, SUMONTHA, VASARUCHAPONG, CHOMNGAM & CHIANGKUL 2020 
DistributionThailand (Mae Hong Son)

Type locality: Thailand, Mae Hong Son Province; Mae Sariang District; 18°09'02.8"N; 97°58'50.2"E (WGS84), 728 m elevation  
Reproduction 
TypesHolotype: THNHM 28064, adult female; paratypes: THNHM, QSSMI (Thai Red Cross Society, Bangkok Province, Thailand) 
DiagnosisDiagnosis: Acanthosaura aurantiacrista sp. n. is differentiated from all other congeners by this combination of characters: A large size (maximum SVL 130.1 mm for males and 119.3 mm for females) and a single long conical spine above the posterior margin of the eye; a large spine on the occiput between the tympanum and nuchal crest; tympanum naked, large, roundish; large developed gular pouch; scales on flanks randomly intermixed with small keeled and small tubercle scales; large nuchal crest with 8 large dagger-like and pointed spines; narrow diastema with 8-9 scales between the nuchal and vertebral crests; vertebral crest composed of large dagger-like, pointed spines beginning at the shoulder region and decreasing in size until the base of the tail; nuchal and dorsal crests are orange in females and yellow in males; tail 1.40-1.70 times the SVL; and black collar and black eye patch present, extending posteriorly until reaching the nuchal crest.

Comparisons: see Trivalarat et al. 2020: 8-11 (using mostly cryptic abbreviations, see methods); no table with comparisons available. 
CommentDistribution: see map in Trivalarat et al. 2020: 17 (Fig. 5). 
References
  • Trivalairat P, Kunya K, Chanhome L, Sumontha M, Vasaruchapong T, Chomngam N, Chiangkul K 2020. Acanthosaura aurantiacrista (Squamata: Agamidae), a new long horn lizard from northern Thailand. Biodiversity Data Journal 8: e48587 - get paper here
 
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