Corresponding authors: Siriwadee Chomdej (
Academic editor: Thomas Ziegler
An integrative taxonomic analysis was used to delimit and diagnose a new species of the
Chomdej S, Suwannapoom C, Pradit W, Phupanbai A, Grismer LL (2023) A new species of the
The
We present herein the description of another new species of the
Distribution of the species of the
Under the general lineage concept (
Methods for DNA extraction, sequencing, and editing followed
Mean (minimum–maximum) percentages of uncorrected pairwise sequence divergence (
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sp. 11 |
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21.03 |
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21.68 | 4.39 |
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20.77 | 22.58 | 21.42 |
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18.86 | 10.64 | 11.02 | 20.15 |
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(18.84–18.97) | (10.58–10.84) | (10.97–11.23) | (20.13–20.26) |
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20.77 | 6.97 | 9.16 | 22.84 | 12.02 |
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(12.00–12.13) | |||||||||||||||
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19.35 | 14.58 | 14.71 | 20.90 | 12.31 | 15.23 |
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(12.26–12.31) | |||||||||||||||
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20.70 | 3.30 | 3.71 | 21.11 | 11.34 | 8.13 | 14.58 |
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(20.65–20.90) | (2.84–4.00) | (3.35–4.26) | (20.90–21.42) | (11.10–11.87) | (7.74–8.65) | (14.45–14.84) |
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20.00 | 15.87 | 15.03 | 21.61 | 12.57 | 15.48 | 12.26 | 15.03 |
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(19.74–20.26) | (15.61–16.13) | (14.84–15.23) | (21.42–21.81) | (12.26–13.03) | (15.23–15.74) | (12.00–12.52) | (14.71–15.48) | ||||||||
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20.65 | 15.42 | 15.48 | 21.61 | 12.25 | 16.00 | 13.10 | 15.23 | 4.65 |
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(20.13–21.16) | (14.84–16.00) | (14.84–16.13) | (21.16–22.06) | (11.61–13.03) | (15.35–16.65) | (12.52–13.68) | (14.19–16.23) | (3.61–5.68) | |||||||
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20.34 | 7.93 | 9.51 | 22.02 | 9.75 | 8.96 | 13.22 | 8.81 | 13.12 | 13.25 |
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(20.13–20.65) | (7.74–8.00) | (9.42–9.55) | (21.81–22.32) | (9.55–9.94) | (8.77–9.03) | (13.03–13.29) | (8.13–9.68) | (12.77–13.42) | (12.52–13.94) |
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19.87 | 9.29 | 10.84 | 21.94 | 10.12 | 10.19 | 13.68 | 10.21 | 13.94 | 14.32 | 8.06 |
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(10.06–10.32) | (10.06–10.45) | (13.68–14.19) | (13.68–14.97) | (7.87–8.13) | |||||||||||
sp. 11 | 20.39 | 7.23 | 8.90 | 22.19 | 11.12 | 3.87 | 14.58 | 8.28 | 15.35 | 15.61 | 8.96 | 10.45 |
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(11.10–11.23) | (8.00–8.65) | (15.10–15.61) | (14.97–16.26) | (8.77–9.03) | |||||||||||
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6.45 | 20.90 | 20.65 | 20.00 | 18.34 | 20.13 | 19.10 | 20.52 | 19.74 | 20.00 | 19.60 | 18.84 | 19.61 |
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(18.32–18.45) | (20.26–20.65) | (19.48–20.00) | (19.48–20.52) | (19.48–19.87) | |||||||||||
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19.74 | 5.81 | 8.13 | 21.16 | 10.12 | 7.1 | 13.94 | 6.97 | 13.94 | 13.94 | 7.80 | 8.39 | 6.58 | 19.48 |
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(10.06–10.32) | (6.58–7.61) | (13.68–14.19) | (13.29–14.58) | (7.61–7.87) |
The morphological data included 15 meristic, 16 normalized morphometric, and eight categorical characters. The data were taken using the protocol of
Evaluated meristic characters were the number of
supralabial scales (
An input file implemented in BEAUti (Bayesian Evolutionary Analysis Utility) v. 2.4.6 was run in BEAST (Bayesian Evolutionary Analysis Sampling Trees) v. 2.4.6 (
All statistical analyses were conducted using
Morphospatial clustering and positioning among the species/populations and individuals was analyzed using multiple factor analysis (
The BEAST analysis recovered
Maximum clade credibility BEAST phylogeny of the
The
Based on the phylogenetic position of
Photograph of the living holotype of
Sex, raw meristic, categorical, and morphometric data used in the analyses of specimens in the
Species |
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sp. 11 | |
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Institutional catalog number | AUP-00680 | LSUHC 1899 | LSUHC 15076 | LSUHC 11788 | THNHM 10670 | THNHM 14112 | LSUHC 8238 | LSUHC 12180 | LSUHC 12181 | ZMMU R-16144 | THNHM 20226 paratype | THNHM 20228 paratype | THNHM 20229 paratype | THNMH 20227 paratype | ZMMU R-16492 |
Sex | ♂ | ♂ | ♀ | ♀ | ♀ | ♀ | ♀ | ♂ | ♂ | ♀ | ♀ | ♀ | ♀ | ♀ | ♂ |
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supralabials ( |
9 | 11 | 12 | 10 | 14 | 12 | 11 | 8 | 13 | 9 | 14 | 12 | 11 | 12 | 11 |
infralabials ( |
9 | 8 | 10 | 9 | 11 | 11 | 11 | 8 | 11 | 9 | 9 | 8 | 8 | 7 | 9 |
paravertebral tubercles ( |
20 | 39 | 37 | 38 | 37 | 37 | 0 | 0 | 0 | 0 | 32 | 33 | 33 | 33 | 30 |
longitudinal rows of tubercles ( |
19 | 15 | 16 | 17 | 16 | 14 | 6 | 7 | 4 | 4 | 19 | 20 | 19 | 19 | 18 |
ventral scales ( |
42 | 38 | 38 | 38 | 36 | 39 | 45 | 45 | 47 | 36 | 42 | 40 | 42 | 43 | 34 |
ventral scales along middle of the body ( |
158 | 176 | 170 | 182 | 154 | 160 | 190 | 225 | 234 | 192 | 187 | 170 | 187 | 178 | 160 |
expanded subdigital lamellae on 4th toe ( |
9 | 7 | 8 | 9 | 8 | 8 | 10 | 9 | 9 | 9 | 12 | 10 | 10 | 11 | 9 |
unmodified subdigital lamellae on 4th toe ( |
11 | 13 | 11 | 11 | 11 | 12 | 11 | 10 | 11 | 9 | 14 | 13 | 12 | 14 | 10 |
total subdigital lamellae 4th toe ( |
20 | 20 | 19 | 20 | 19 | 20 | 21 | 19 | 20 | 18 | 26 | 23 | 22 | 23 | 19 |
expanded subdigital lamellae on 4th finger ( |
9 | 8 | 8 | 8 | 7 | 8 | 8 | 9 | 9 | 9 | 9 | 8 | 9 | 9 | 10 |
unmodified subdigital lamellae on 4th finger ( |
10 | 9 | 11 | 10 | 10 | 10 | 12 | 13 | 9 | 8 | 12 | 11 | 12 | 13 | 9 |
total subdigital lamellae 4th finger ( |
19 | 17 | 19 | 18 | 17 | 18 | 20 | 22 | 18 | 17 | 21 | 21 | 21 | 22 | 19 |
enlarged femoral scales (R/L) | 8 | 0 | 0 | 0 | 8R/8L | 7R/7L | 0 | 0 | 0 | 0 | 11R/8L | 10R/9L | 8R/8L | 9R/10L | 9R/8L |
total enlarged femoral scales ( |
16 | 16 | 10 | 11 | 16 | 14 | 0 | 0 | 0 | 0 | 14 | 19 | 19 | 19 | 17 |
total femoral pores in males ( |
20 | 7 | / | / | / | / | / | 0 | 0 | / | / | / | / | / | 17 |
enlarged precloacal scales ( |
13 | 7 | 7 | 7 | 8 | 7 | 8 | 8 | 8 | 7 | 14 | 15 | 13 | 19 | 13 |
precloacal pores in males ( |
13 | 7 | / | / | / | / | / | 8 | 8 | / | 0 | / | 0 | 0 | 13 |
postcloacal tubercles ( |
3 | 3 | 3 | 2 | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 2 | 3 | 3 | 3 |
Body bands ( |
3 | 4 | 6 | 3 | 5 | 5 | 5 | 5 | 3 | 3 | 5 | 5 | 5 | 5 | 3 |
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small tubercles on flank ( |
present | present | present | present | present | present | absent | absent | absent | absent | present | present | present | present | present |
denticulate ventrolateral body folds ( |
present | absent | absent | absent | absent | absent | absent | absent | absent | absent | absent | absent | absent | absent | absent |
dorsolateral caudal tubercles ( |
small | small | small | small | / | small | large | large | large | large | small | / | small | small | large |
ventrolateral caudal fringe narrow or wide ( |
wide | narrow | narrow | narrow | / | narrow | wide | wide | wide | wide | narrow | / | narrow | narrow | wide |
ventrolateral caudal fringe scales generally homogenous ( |
no | no | no | no | / | no | no | no | no | no | yes | yes | yes | yes | yes |
tail cross-section ( |
square | circular | circular | circular | / | circular | square | square | square | square | circular | / | circular | circular | square |
slightly enlarged medial subcaudals ( |
absent | present | present | present | / | absent | absent | absent | absent | absent | absent | / | absent | absent | present |
single enlarged medial subcaudal ( |
absent | absent | absent | absent | / | absent | absent | absent | absent | absent | absent | / | absent | absent | absent |
enlarged medial subcaudals intermittent, medially furrowed, posteriorly emarginate ( |
no | no | no | no | / | no | no | no | no | no | yes | / | yes | yes | no |
small ventrolateral subcaudal ridge of scales ( |
yes | no | no | no | no | no | no | no | no | no | no | no | no | no | no |
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69.5 | 68.8 | 70.8 | 64.1 | 65.95 | 63.79 | 80.2 | 78.2 | 84.8 | 78.6 | 81.19 | 74.80 | 78.56 | 59.70 | 68.1 |
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83.0 | 35.7 | 33.4 | 30.1 | 30.0 | 26.5 | 39.7 | 37.8 | 41.5 | 36.2 | 34.5 | 33.7 | 32.7 | 24.6 | 34.6 |
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9.1 | 9.7 | 9.3 | 8.0 | 9.6 | 9.5 | 10.2 | 9.1 | 10.1 | 1.7 | 9.8 | 10.2 | 11.2 | 7.4 | 10.3 |
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10.2 | 9.9 | 9.8 | 8.9 | 8.2 | 8.7 | 11.5 | 11.7 | 11.8 | 10.2 | 10.6 | 10.5 | 11.1 | 8.4 | 8.5 |
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12.8 | 12.0 | 12.6 | 11.5 | 11.7 | 9.8 | 12.9 | 14.2 | 14.6 | 13.1 | 14.7 | 13.2 | 12.7 | 10.2 | 12.6 |
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6.5 | 11.6 | 12.2 | 10.5 | 9.7 | 8.2 | 13.5 | 14.0 | 13.8 | 12.3 | 13.1 | 11.9 | 12.9 | 10.2 | 11.4 |
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18.8 | 19.3 | 19.3 | 19.0 | 17.9 | 18.2 | 21.8 | 21.6 | 21.9 | 21.7 | 20.8 | 19.9 | 21.7 | 16.7 | 18.4 |
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12.7 | 13.2 | 13.8 | 12.3 | 12.3 | 12.0 | 15.6 | 16.1 | 15.9 | 15.1 | 14.0 | 13.4 | 14.2 | 11.4 | 13.1 |
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7.2 | 8.0 | 7.6 | 7.6 | 7.3 | 7.0 | 9.6 | 9.8 | 10.4 | 9.8 | 3.4 | 8.6 | 8.7 | 6.6 | 8.3 |
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4.0 | 5.2 | 4.5 | 4.3 | 5.3 | 4.4 | 4.8 | 5.0 | 5.7 | 5.0 | 5.3 | 5.5 | 5.9 | 4.4 | 4.4 |
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5.4 | 5.7 | 5.9 | 4.9 | 5.7 | 5.7 | 6.4 | 7.1 | 7.0 | 6.8 | 5.8 | 6.2 | 6.4 | 4.8 | 6.2 |
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7.9 | 7.4 | 7.6 | 7.0 | 7.0 | 7.2 | 8.6 | 8.7 | 9.5 | 8.6 | 8.3 | 7.8 | 9.1 | 6.8 | 7.7 |
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5.8 | 5.7 | 5.4 | 4.9 | 5.3 | 5.4 | 6.0 | 6.2 | 6.5 | 6.2 | 6.0 | 5.5 | 6.8 | 5.1 | 5.5 |
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7.1 | 5.4 | 4.7 | 4.7 | 4.2 | 5.2 | 5.7 | 5.4 | 5.4 | 3.9 | 4.8 | 4.7 | 5.5 | 4.3 | 2.9 |
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0.7 | 1.0 | 1.4 | 1.1 | 1.3 | 1.0 | 1.9 | 1.4 | 1.5 | 1.4 | 1.3 | 1.3 | 1.6 | 1.2 | 0.9 |
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2.4 | 1.7 | 2.1 | 2.3 | 2.1 | 2.2 | 2.7 | 2.6 | 2.5 | 3.1 | 2.1 | 2.2 | 2.5 | 1.8 | 2.3 |
Sex, raw meristic, categorical, and morphometric data used in the analyses of specimens in the
Species |
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Institutional catalog number | AUP-00680 | HNUE-R00111 | IEBR 4829 | VNUF R.2020.12 | HNUE-R00112 | FMNH 255454 | FMNH 270493 | FMNH 270492 | FMNH 265806 | NCSM 79472 | ZMMU R-14917 | NCSM 80100 |
Sex | ♂ | ♂ | ♀ | ♀ | ♀ | ♀ | ♂ | ♂ | ♂ | ♀ | ♀ | ♀ |
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supralabials ( |
9 | 10 | 10 | 10 | 10 | 13 | 13 | 13 | 10 | 14 | 9 | 12 |
infralabials ( |
9 | 9 | 9 | 9 | 9 | 10 | 9 | 11 | 8 | 11 | 10 | 12 |
paravertebral tubercles ( |
20 | 39 | 40 | 38 | 40 | 28 | 27 | 26 | 27 | 28 | 32 | 29 |
longitudinal rows of tubercles ( |
19 | 18 | 18 | 17 | 22 | 19 | 18 | 17 | 19 | 18 | 24 | 19 |
ventral scales ( |
42 | 38 | 36 | 35 | 32 | 37 | 36 | 36 | 33 | 33 | 36 | 35 |
ventral scales along middle of the body ( |
158 | 168 | 164 | 178 | 158 | 159 | 166 | 156 | 158 | 164 | 166 | 165 |
expanded subdigital lamellae on 4th toe) |
9 | 8 | 10 | 9 | 9 | 10 | 10 | 8 | 10 | 9 | 8 | 10 |
unmodified subdigital lamellae on 4th toe) |
11 | 11 | 10 | 11 | 10 | 11 | 11 | 11 | 11 | 12 | 10 | 10 |
total subdigital lamellae 4th toe ( |
20 | 13 | 16 | 17 | 16 | 21 | 21 | 19 | 21 | 21 | 18 | 20 |
expanded subdigital lamellae on 4th finger ( |
9 | 6 | 6 | 7 | 6 | 8 | 8 | 8 | 8 | 9 | 7 | 9 |
unmodified subdigital lamellae on 4th finger ( |
10 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 8 | 9 | 10 |
total subdigital lamellae 4th finger ( |
19 | 15 | 15 | 18 | 15 | 18 | 18 | 18 | 18 | 17 | 16 | 19 |
enlarged femoral scales (R/L) | 8 | 10R/10L | 9R/8L | 10R/9L | 8R/9L | 9R/7L | 8R/9L | 9R/9L | 8R/8L | 9R/8L | 7R/8L | 7R/8L |
total enlarged femoral scales ( |
16 | 20 | 17 | 19 | 17 | 16 | 17 | 18 | 16 | 17 | 15 | 15 |
total femoral pores ( |
20 | 14 | / | / | / | / | 14 | 15 | 13 | / | / | / |
enlarged precloacal scales ( |
13 | 13 | 13 | 13 | 13 | 15 | 13 | 13 | 13 | 12 | 13 | 13 |
precloacal pores ( |
13 | 13 | / | / | / | 13 | 13 | 13 | 13 | / | / | / |
postcloacal tubercles ( |
3 | 3 | 2 | 1 | 2 | / | / | / | / | 2 | 3 | 4 |
Body bands ( |
3 | 6 | 6 | 6 | 6 | 3 | 4 | 3 | 3 | 3 | 3 | 3 |
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small tubercles on flank ( |
present | present | present | present | present | present | present | present | present | present | present | present |
denticulate ventrolateral body folds ( |
present | absent | absent | absent | absent | absent | absent | absent | absent | absent | absent | absent |
dorsolateral caudal tubercles ( |
small | small | small | small | small | small | small | small | small | small | small | small |
ventrolateral caudal fringe narrow or wide ( |
wide | narrow | narrow | narrow | narrow | narrow | narrow | narrow | narrow | narrow | narrow | narrow |
ventrolateral caudal fringe scales generally homogenous ( |
no | no | no | no | no | yes | yes | yes | yes | yes | yes | yes |
tail cross-section ( |
square | circular | circular | circular | circular | circular | circular | circular | circular | circular | circular | circular |
slightly enlarged medial subcaudals ( |
absent | present | present | present | present | / | present | present | present | present | present | present |
single enlarged medial subcaudal ( |
absent | absent | absent | absent | absent | / | absent | absent | absent | absent | absent | absent |
enlarged medial subcaudals intermittent, medially furrowed, posteriorly emarginate ( |
no | no | no | no | no | / | no | no | no | no | no | no |
small ventrolateral subcaudal ridge of scales ( |
yes | no | no | no | no | / | no | no | no | no | no | no |
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69.5 | 66.5 | 68.1 | 69.3 | 46.6 | 83.6 | 70.2 | 74.1 | 73.8 | 78.0 | 87.1 | 77.7 |
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83.0 | 28.8 | 29.8 | 30.2 | 19.7 | 41.3 | 35.4 | 37.0 | 31.3 | 38.2 | 41.9 | 36.8 |
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9.1 | 7.9 | 8.1 | 8.5 | 5.6 | 8.6 | 8.7 | 8.6 | 6.9 | 8.7 | 11.5 | 9.2 |
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10.2 | 9.2 | 10.0 | 10.1 | 6.5 | 10.2 | 9.3 | 10.4 | 10.0 | 10.3 | 10.4 | 10.7 |
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12.8 | 11.5 | 11.5 | 11.5 | 7.6 | 13.7 | 12.7 | 13.0 | 13.1 | 13.1 | 15.2 | 14.2 |
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6.5 | 10.8 | 11.1 | 11.8 | 7.8 | 12.5 | 11.8 | 11.2 | 11.1 | 12.8 | 12.6 | 12.7 |
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18.8 | 20.1 | 20.4 | 20.7 | 16.1 | 21.7 | 20.6 | 20.3 | 20.7 | 21.2 | 22.1 | 21.4 |
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12.7 | 12.6 | 12.0 | 11.8 | 8.8 | 13.8 | 12.5 | 13.0 | 12.3 | 12.7 | 14.8 | 13.5 |
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7.2 | 7.4 | 7.2 | 6.6 | 5.1 | 9.2 | 8.4 | 9.1 | 7.6 | 8.3 | 8.7 | 9.2 |
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4.0 | 3.8 | 4.1 | 3.4 | 2.6 | 4.9 | 4.9 | 4.9 | 4.8 | 6.5 | 4.6 | 6.0 |
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5.4 | 5.8 | 5.5 | 5.9 | 4.4 | 6.9 | 6.1 | 6.2 | 5.7 | 5.3 | 6.5 | 6.2 |
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7.9 | 7.5 | 7.6 | 6.9 | 5.0 | 9.0 | 8.3 | 8.3 | 8.2 | 8.7 | 8.8 | 8.4 |
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5.8 | 6.7 | 6.3 | 6.2 | 4.5 | 6.5 | 6.2 | 6.1 | 6.2 | 6.2 | 6.6 | 6.0 |
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7.1 | 5.6 | 5.4 | 5.6 | 4.2 | 6.6 | 5.6 | 5.4 | 5.1 | 4.9 | 3.5 | 5.7 |
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0.7 | 0.8 | 0.8 | 0.7 | 0.3 | 1.3 | 1.1 | 1.2 | 1.0 | 1.5 | 1.2 | 0.9 |
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2.4 | 2.8 | 2.6 | 2.6 | 2.0 | 2.8 | 2.5 | 2.5 | 2.3 | 2.7 | 2.2 | 2.5 |
Sex, raw meristic, categorical, and morphometric data used in the analyses of specimens in the
Species |
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sp.13 | |||||||||
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Institutional catalog number | AUP-00680 | ZMKU R 00950 paratype | ZMKU R 00951 paratype | ZMKU R 00952 paratype | ZMKU R 00953 holotype | ZMKU R 00954 paratype | ZMKU R 00955 pratype | ZMKU R 00956 paratype | ZMKU R 00957 paratype | THNHM 00104 | THNHM 27821 |
Sex | ♂ | ♀ | ♂ | ♀ | ♂ | ♂ | ♀ | ♂ | ♀ | ♀ | ♀ |
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supralabials ( |
9 | 12 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 12 | 15 |
infralabials ( |
9 | 8 | 8 | 10 | 10 | 9 | 10 | 10 | 9 | 10 | 11 |
paravertebral tubercles ( |
20 | 32 | 33 | 34 | 34 | 36 | 36 | 30 | 30 | 33 | 29 |
longitudinal rows of tubercles ( |
19 | 21 | 19 | 20 | 20 | 21 | 21 | 19 | 19 | 18 | 20 |
ventral scales ( |
42 | 34 | 33 | 33 | 34 | 30 | 33 | 32 | 33 | 37 | 36 |
ventral scales along middle of the body ( |
158 | 173 | 158 | 156 | 166 | 159 | 159 | 150 | 169 | 159 | 165 |
expanded subdigital lamellae on 4th toe ( |
9 | 9 | 10 | 9 | 8 | 10 | 8 | 9 | 9 | 9 | 7 |
unmodified subdigital lamellae on 4th toe ( |
11 | 12 | 14 | 13 | 12 | 13 | 12 | 11 | 13 | 12 | 12 |
total subdigital lamellae 4th toe ( |
20 | 21 | 24 | 22 | 20 | 23 | 20 | 20 | 22 | 21 | 19 |
expanded subdigital lamellae on 4th finger ( |
9 | 8 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
unmodified subdigital lamellae on 4th finger ( |
10 | 10 | 12 | 12 | 11 | 12 | 12 | 11 | 12 | 11 | 10 |
total subdigital lamellae 4th finger ( |
19 | 18 | 19 | 19 | 19 | 20 | 20 | 19 | 20 | 19 | 18 |
enlarged femoral scales (R/L) | 8 | 5R/7L | 8R/8L | 8R/8L | 7R/8L | 8R/8L | 7R/8L | 7R/6L | 8R/8L | 9R/9L | 7R/10L |
total enlarged femoral scales ( |
16 | 12 | 16 | 16 | 15 | 16 | 15 | 13 | 16 | 18 | 17 |
total femoral pores ( |
20 | 0 | 16 | 0 | 14 | 15 | 14 | 12 | 0 | 0 | 0 |
enlarged precloacal scales ( |
13 | 17 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 16 |
precloacal pores ( |
13 | 0 | 15 | 0 | 15 | 15 | 15 | 15 | 0 | 0 | 0 |
postcloacal tubercles ( |
3 | 2 | 2R/3L | 3 | 3 | 2R/3L | 2R/3L | 3 | 2 | 3 | 3 |
Body bands ( |
3 | 3 | 4 | 3 | 4 | 3 | 5 | 4 | 4 | 3 | / |
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small tubercles on flank ( |
present | present | present | present | present | present | present | present | present | present | present |
denticulate ventrolateral body folds ( |
present | absent | absent | absent | absent | absent | absent | absent | absent | absent | absent |
dorsolateral caudal tubercles ( |
small | large | large | large | large | large | large | / | large | small | small |
ventrolateral caudal fringe narrow or wide ( |
wide | wide | wide | wide | wide | wide | wide | / | wide | narrow | narrow |
ventrolateral caudal fringe scales generally homogenous ( |
no | no | no | no | no | no | no | / | no | yes | yes |
tail cross-section ( |
square | square | square | square | square | square | square | / | square | circular | circular |
slightly enlarged medial subcaudals ( |
absent | present | present | present | present | present | present | / | present | present | present |
single enlarged medial subcaudal ( |
absent | absent | absent | absent | absent | absent | absent | / | absent | absent | absent |
enlarged medial subcaudals intermittent, medially furrowed, posteriorly emarginate ( |
no | no | no | no | no | yes | no | / | no | no | no |
small ventrolateral subcaudal ridge of scales ( |
yes | no | no | no | no | no | no | / | no | no | no |
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69.5 | 73.1 | 73.5 | 73.7 | 73.2 | 64.4 | 76.6 | 76.6 | 74.2 | 63.7 | 72.9 |
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83.0 | 34.8 | 33.9 | 35.4 | 33.6 | 28.5 | 37.1 | 33.2 | 35.1 | 25.8 | 30.6 |
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9.1 | 8.4 | 7.2 | 9.0 | 9.0 | 7.2 | 8.0 | 8.1 | 8.6 | 7.6 | 10.1 |
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10.2 | 9.5 | 9.1 | 9.2 | 9.8 | 9.2 | 10.0 | 8.6 | 9.8 | 8.1 | 9.6 |
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12.8 | 12.8 | 11.6 | 12.3 | 12.5 | 10.9 | 13.7 | 10.8 | 12.5 | 10.7 | 12.8 |
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6.5 | 10.5 | 10.1 | 10.6 | 10.6 | 9.9 | 11.1 | 10.0 | 11.4 | 10.1 | 10.2 |
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18.8 | 19.9 | 20.9 | 20.1 | 20.0 | 17.6 | 20.4 | 19.3 | 20.0 | 17.6 | 19.9 |
|
12.7 | 14.5 | 14.3 | 15.7 | 13.9 | 12.8 | 14.7 | 14.4 | 14.1 | 11.9 | 13.8 |
|
7.2 | 7.8 | 7.7 | 7.9 | 7.7 | 7.0 | 8.2 | 7.8 | 7.6 | 7.7 | 8.4 |
|
4.0 | 5.0 | 5.1 | 5.0 | 5.0 | 4.8 | 5.6 | 5.3 | 4.9 | 4.1 | 5.3 |
|
5.4 | 5.9 | 5.9 | 6.0 | 5.9 | 5.3 | 6.1 | 6.0 | 6.0 | 4.9 | 6.3 |
|
7.9 | 7.9 | 8.5 | 7.9 | 7.9 | 7.3 | 8.2 | 7.9 | 7.9 | 7.2 | 8.0 |
|
5.8 | 6.0 | 6.1 | 6.0 | 5.8 | 5.4 | 6.1 | 6.0 | 5.9 | 5.6 | 5.9 |
|
7.1 | 5.4 | 5.5 | 5.8 | 5.5 | 4.9 | 5.7 | 5.6 | 5.3 | 4.8 | 6.1 |
|
0.7 | 1.1 | 1.5 | 1.5 | 1.2 | 1.2 | 1.0 | 1.2 | 1.3 | 1.4 | 1.4 |
|
2.4 | 2.3 | 2.4 | 2.2 | 2.0 | 2.0 | 2.3 | 2.2 | 2.2 | 2.1 | 2.3 |
Head of the holotype of
Holotype of
Body relatively short (
Forelimbs moderate in stature, relatively short (
Posterior one-fifth of tail regenerated, 83.0 mm long (
The specific epithet
The holotype was collected at night between 19.00–23.00 hours in a bamboo forest near a rocky stream. The lizard was found on a bamboo branch 4 m above a large granite boulder (Fig.
Habitat of
The data above clearly demonstrate the unique phylogenetic and morphological properties of the individual described above as
The addition of
This work was supported by the National Research Council of Thailand (167951), the Thailand Science Research and Innovation (TSRI) (DBG6180025), and Chiang Mai University to Siriwadee Chomdej. We would like to thank the Laboratory Animal Research Center, University of Phayao, and Parinya Pawangkhanant for sample collection and field trips. Specimen collection protocols were approved by the Institutional Ethical Committee of Animal Experimentation of the University of Phayao (certificate number 640204005 issued to Chatmongkon Suwannapoom). Our thanks to the Thailand Research Fund 2019 (MRG6280203) and the Unit of Excellence 2023 on Biodiversity and Natural Resources Management, University of Phayao (FF66-UoE003). We also thank Anchalee Aowphol and Attapol Rujirawan for their assistance in data checking of
Dataset of meristic, normalized morphometric, and categorical characters
table (.csv file)