Hidden diversity of rock geckos within the Cnemaspis siamensis species group (Gekkonidae, Squamata): genetic and morphological data from southern Thailand reveal two new insular species and verify the phylogenetic affinities of C. chanardi and C. kamolnorranathi Author Ampai, Natee https://orcid.org/0000-0001-8562-299X Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, 10110 Thailand Author Rujirawan, Attapol https://orcid.org/0000-0001-9179-6910 Department of Zoology, Faculty of Science, Kasetsart University, Bangkok, 10900 Thailand Author Yodthong, Siriporn https://orcid.org/0000-0001-6577-5358 Department of Biology, Faculty of Science, Thaksin University, Pa Phayom, Phattalung, 93210 Thailand Author Termprayoon, Korkhwan https://orcid.org/0000-0003-1903-3040 Department of Zoology, Faculty of Science, Kasetsart University, Bangkok, 10900 Thailand Author Stuart, Bryan L. Section of Research & Collections, North Carolina Museum of Natural Sciences, Raleigh, NC, USA Author Wood Jr, Perry L. https://orcid.org/0000-0003-3767-5274 Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA Author Aowphol, Anchalee https://orcid.org/0000-0001-9504-4601 Department of Zoology, Faculty of Science, Kasetsart University, Bangkok, 10900 Thailand fsciacl@ku.ac.th text ZooKeys 2022 2022-10-21 1125 115 158 http://dx.doi.org/10.3897/zookeys.1125.94060 journal article http://dx.doi.org/10.3897/zookeys.1125.94060 1313-2970-1125-115 3A08F03D4E264CAF9017844F841EABA6 69F46EF328795CBE8636C3F4A2ECC719

Table 4. Summary of proportions of variance, standard deviation, eigenvalues and factor loadings from the 10 first principal components (PC) of 14 size-adjusted morphometric characters of two new insular species Cnemaspis samui sp. nov., Cnemaspis similan sp. nov. and seven congeners of the Cnemaspis siamensis group including C. adangrawi, C. chanardi, C. lineatubercularis, C. omari, C. phangngaensis, C. siamensis and C. thachanaensis. Values highlighted in bold represent those with the greatest contribution (≥0.30). Measurement abbreviations are defined in the text.

Character	PC1	PC2	PC3	PC4	PC5	PC6	PC7	PC8	PC9	PC10
Proportion of Variance	54.6	17.2	6.2	5.7	5.1	4.3	2.3	1.3	1.0	0.8
Standard deviation	2.77	1.55	0.93	0.89	0.84	0.78	0.57	0.42	0.37	0.33
eigenvalues	7.65	2.406	0.872	0.793	0.711	0.606	0.32	0.179	0.137	0.112
TW	-0.293	-0.083	0.266	0.296	-0.093	0.017	- 0.747	0.069	-0.054	0.169
FL	-0.263	-0.125	- 0.375	- 0.362	0.414	-0.207	- 0.317	-0.01	0.005	0.374
TBL	- 0.308	0.091	-0.217	-0.171	0.401	0.182	0.021	0.123	0.217	- 0.454
AG	- 0.302	0.233	-0.04	-0.132	-0.093	0.247	0.069	- 0.708	- 0.358	0.163
HL	- 0.324	-0.118	-0.063	-0.020	0.037	0.360	0.229	0.310	0.064	0.371
HW	- 0.328	-0.097	-0.009	-0.030	-0.115	0.418	0.100	0.016	-0.145	-0.267
HD	- 0.321	-0.073	0.332	0.211	-0.114	0.066	0.175	0.170	-0.108	0.095
ED	-0.264	0.079	0.422	-0.232	0.237	- 0.518	0.161	0.132	- 0.458	-0.196
EE	- 0.323	-0.005	-0.032	0.422	0.145	-0.073	0.080	0.071	0.209	-0.164
ES	- 0.304	0.191	0.011	0.198	-0.086	- 0.370	0.098	- 0.408	0.532	-0.027
EN	-0.210	0.208	- 0.563	0.093	- 0.500	- 0.325	0.119	0.308	-0.236	0.083
EL	-0.105	0.439	0.282	- 0.558	- 0.364	0.087	-0.158	0.214	0.357	0.004
IN	-0.096	- 0.565	0.172	-0.231	-0.137	-0.155	0.325	-0.085	0.254	0.292
IO	0.113	0.538	0.14	0.211	0.370	0.079	0.236	0.131	0.032	0.473