A new species of the genus Gekko Laurenti (Squamata: Sauria: Gekkonidae) from Vietnam with remarks on G. japonicus (Schlegel)

We describe a new species of the gekkonid genus Gekko from northern Vietnam on the basis of four specimens from Lang Son and Lao Cai provinces. Gekko canhi sp. n. is distinguished from the remaining congeners by the combination of the following characters: body size moderate (SVL < 100 mm); supralabials 12-14, infralabials 10-13; nares in contact with rostral, internasal single, nasals 3; interorbitals 47-50; dorsal tubercle rows 10-13; scales between mental and cloacal slit 205-229; midbody scales 164-170; subdigital lamellae below first toe 13-16, below fourth toe 14-17; extensive webbing between fingers and toes minimal; tibial tubercles present; precloacal pores 5; postcloacal tubercles 2-3; tail round, not thickened at base; caudal tubercles present; subcaudals enlarged. We also provide new information on the taxonomy and distribution of G. japonicus in Vietnam.