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Cyrtodactylus bayinnyiensis GRISMER, WOOD, THURA, QUAH, MURDOCH, GRISMER, HERR, LIN & KYAW, 2018

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common NamesE: Bayin Nyi Cave bent-toed gecko 
SynonymCyrtodactylus bayinnyiensis GRISMER, WOOD, THURA, QUAH, MURDOCH, GRISMER, HERR, LIN & KYAW 2018 
DistributionMyanmar (Kayin)

Type locality: Bayin Nyi Cave, 16.8 km north-west of Hpa-an, Hpa-an District, Kayin State, Myanmar (16.97048°N, 97.49378°E; 33 m in elevation.  
Reproductionoviparous (manual imputation, fide Zimin et al. 2022) 
TypesHolotype: LSUHC 13265, Adult male, collected on 11 May 2017 at 2300 hrs by Mark W. Herr, Perry L. Wood Jr., L. Lee Grismer, Matthew L. Murdoch, Myint Kyaw Thura, Evan S.H. Quah, and Htet Kyaw. Paratypes: Unsexed juveniles LSUHC 13261–64 collected on 11 May 2017 at 2000–2130 hrs by Myint Kyaw Thura, L. Lee Grismer, Mark W. Herr, Perry L. Wood, Jr., Matthew L. Murdoch, Evan S.H. Quah, and Htet Kyaw from Hpa-pu Hill, 3.1 km north of Hpa-an, Hpa-an District, Mon State, Myanmar (16.91072, 97.62716; 17 m in elevation). 
DiagnosisDiagnosis: Cyrtodactylus bayinnyiensis sp. nov. differs from all congeners by having the unique combination of SVL 84.1 mm; 7–9 supralabials; six or seven infralabials; 25–27 paravertebral tubercles; 16–19 longitudinal rows of body tubercles; 24–28 longitudinal rows of ventral scales; relatively long digits with nine expanded subdigital lamellae proximal to the digital inflexion on the fourth toe, 13 or 14 unmodified distal subdigital lamellae, 22 or 23 total subdigital lamellae; raised, moderately keeled, dorsal body tubercles in adults; tubercles extending beyond base of tail; enlarged femoral and precloacal scales not continuous; enlarged proximal femoral scales larger than one-half the size of the enlarged distal femoral scales; 24–28 enlarged femoral scales; 15 femoral pores in male; nine precloacal pores in male; femoral and precloacal pore-bearing scales continuous; eight or nine enlarged precloacal scales; two or three rows of enlarged post-precloacal scales; medial subcaudal scales 3 times as wide as long, extending onto lateral surface of tail; top of head darkly mottled in the single adult, no yellow reticulum; nuchal loop not divided medially, no pronounced anterior azygous notch, posterior border jagged; 4–6 jagged, dark, dorsal bands with variably present paravertebral elements, wider than interspaces with lightened centres in adults, not edged with white tubercles; nape band present; dark markings in dorsal interspaces; ventrolateral folds not whitish; anterodorsal margins of thighs and brachia darkly pigmented; 7–11 light caudal bands not bearing dark markings, not encircling tail; 8–12 dark caudal bands wider than light caudal bands; and mature regenerated tail spotted. These characters are scored against all other species in the sinyineensis group (Table 4) and all other Burmese species of the Indochinese clade in Grismer et al. (2017a, table 8).


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Comment 
EtymologyThe specific epithet, bayinnyiensis, is a noun in apposition in reference to the type locality of Bayin Nyi Cave. 
References
  • CHOMDEJ, S., SUWANNAPOOM, C., PAWANGKHANANT, P., PRADIT, W., NAZAROV, R. A., GRISMER, L. L., & POYARKOV, N. A. 2020. A new species Cyrtodactytlus Gray (Squamata: Gekkonidae) from western Thailand and the phylogenetic placement of C. inthanon and C. doisuthep. Zootaxa 4838 (2): 179-209 - get paper here
  • Grismer, L. Lee; Perry L. Wood Jr., Myint Kyaw Thura, Evan S.H. Quah, Matthew L. Murdoch, Marta S. Grismer, Mark W. Herr, Aung Lin & Htet Kyaw 2018. Three more new species of Cyrtodactylus (Squamata: Gekkonidae) from the Salween Basin of eastern Myanmar underscore the urgent need for the conservation of karst habitats. Journal of Natural History, 52:19-20, 1243-1294 - get paper here
  • GRISMER, L. LEE; PERRY L. WOOD, JR., EVAN S.H. QUAH, MARTA S. GRISMER, MYINT KYAW<br>THURA, JAMIE R. OAKS & AUNG LIN 2020. Two new species of Cyrtodactylus Gray, 1827 (Squamata: Gekkonidae) from a karstic archipelago in the Salween Basin of southern Myanmar (Burma). Zootaxa 4718 (2): 151–183 - get paper here
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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