A review of genus Cyrtodactylus (Reptilia: Sauria: Gekkonidae) in fauna of Laos with description of four new species
Bibliographic record
Abstract
We describe four new species of the genus Cyrtodactylus based on the results of phylogenetic analysis of 673 bp of the COI mtDNA gene and morphological description of voucher specimens from Khammouane and Vientiane provinces, Laos. The three of the new species, namely Cyrtodactylus khammouanensis sp. nov., Cyrtodactylus darevskii sp. nov. and Cyrtodactylus multiporus sp. nov., are described from a small area in monsoon tropical forests on limestone in the environs of Nahome Village, Boulapha District, Khammouane Province, Central Annamites. Cyrtodactylus darevskii sp. nov. differs from all other Laotian Cyrtodactylus by a combination of the following morphological characters: (1) maximum SVL up to 100 mm; (2) dorsal pattern formed by the narrow dark nuchal band and 4–5 dark transverse breaking bands with light yellowish posterior edges between limbs; (4) 38–46 ventral scales; (5) continuous series of 38–44 precloacal and femoral pores in males and 24–34 precloacal and femoral pores in females; (6) preclocal groove lacking; (7) 4–5 postcloacal spurs present in both sexes; (8) one median row of subcaudal scales. Cyrtodactylus khammouanensis sp. nov. appears to be closely related to the recently described C. jaegeri Luu et. al., 2014 and can be distinguished from this species and the remaining Laotian congeners by a combination of the following morphological features: (1) medium size, with a maximum SVL up to 73 mm; (2) males with continuous series of 40–44 precloacal and femoral pores; (3) preclocal groove lacking; (4) 32–38 longitudinal rows of ventral scales at midbody; (5) weakly keeled tubercles present on the dorsum and lacking on the head; (6) 5–6 enlarged postcloacal spurs in both sexes; (8) one median row of subcaudal scales; (7) dorsal pattern consisting of wide dark nuchal band and 4–5 dark wide transverse bands. Cyrtodactylus multiporus sp. nov. is distinguished by a combination of the following morphological attributes: (1) maximum SVL of up to 98 mm; (2) dorsal patterns consisting of dark irregular separate spots between limbs and on the dorsal surface of the head; (3) nuchal band absent; (4) 30–38 ventrals; (5) continuous series of 58–60 precloacal and femoral pores in males; (6) preclocal groove lacking; (7) 5–6 postcloacal spurs present in both sexes; (8) one median row of subcaudal scales. Cyrtodactylus spelaeus sp. nov. is described from a cave in north of Vientiane Province of Laos and differs from other congeners by a combination of the following characters: (1) maximum SVL of 98 mm; (2) dorsal pattern formed by oblong dark irregular butterflyshaped blotches with light contrast margins; (3) nuchal band with light edging consists of two separate parts, which contact in occipital region; (4) 37–39 ventral scales; (5) 7–8 precloacal pores in males; (5) preclocal groove lacking; (6) 2–3 postcloacal spurs present in both sexes; (7) ten rows of enlarged dorsal tubercles. Our study increase the number of Cyrtodactylus species known for Laos to fifteen. COI DNA-barcoding is successfully applied to reveal cryptic diversity within the genus Cyrtodactylus.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".