New species of parachute gecko (Squamata: Gekkonidae: Genus Ptychozoon) from northeastern Thailand and central Vietnam

I describe a new species of parachute gecko from localities in northeastern Thailand and the central highlands of Vietnam. The new species is known from intact climax rain forest and slightly disturbed clearings or secondary forest adjacent to intact rain forest. The new species differs from congeners by the combination of three (vs four) transverse bands in the axilla-groin region, 19-21 preanofemoral pore-bearing scales in a continuous series, 15-16 cutaneous denticulate lobes of the tail, lateral orientation of the caudal lobes, minimal reduction in total width of distal portions of the tail, absence of substantive lateral expansion of the straight-edged tail terminus beyond the nearest denticulate caudal lobe, minimal lobe fusion at the proximal herder of the tail terminus, continuation of caudal tubercles distally on to the dorsal surface of tail terminus, absence of a predigital notch in the preantebrachial cutaneous expansion, and the presence (in a Thai specimen) of a single midvertebral row of flat dorsal tubercles (vertebral tubercle series absent in Vietnamese specimens).