Takydromus sexlineatus Daudin, 1802

Grismer, L. Lee, Neang, Thy, Chav, Thou, Wood, Perry L., Jr & Oaks, Jamie R., 2008, Additional Amphibians And Reptiles From The Phnom Samkos Wildlife Sanctuary In Northwestern Cardamom Mountains, Cambodia, With Comments On Their Taxonomy And The Discovery Of Three New Species, Raffles Bulletin of Zoology 56 (1), pp. 161-175 : 169-170

Takydromus sexlineatus Daudin, 1802

( Fig. 14 )

Material examined. – LSUHC 7795 : Pramaoy, 4 Aug.2006 . LSUHC 7809 : Che Teal Chrum, 5 Aug.2006 ; LSUHC 7854 , 7856–57 , 7886 , 8 Aug.2006 ; LSUHC 7968 , 12 Aug.2006 .

Remarks. – Five adult males (LSUHC 7795, 7809, 7854, 7856, 7857; SVL 50–59 mm) and two adult females (LSUHC 7786, 7968; SVL 55–65 mm) match Taylor’s (1963) diagnosis and the description of this species from the central Cardamoms (Stuart & Emmett, 2006) in having unregenerated tails nearly four times longer than the SVLs; nasals meeting on the median line; keeled frontal scale; a single preanal pore at the base of each hind limb; and a single, enlarged anal scale flanked by two small scales on each side. They differ in that Taylor (1963) reports Takydromus sexlineatus having six rows of enlarged keeled scales on the neck and front onehalf of the body followed by four rows. However, LSUHC 7795, 7856–57, 7886, and 7968 have eight rows of enlarged keeled scales on the neck which become four rows at the level of the forelimb insertion. LSUHC 7809 and 7854 have eight enlarged rows on the neck, becoming six rows at the level of the forelimb insertions, and four rows in the anterior region of the trunk. All scale rows are strongly keeled with the keels forming a continuous ridge running the length of the body. Taylor (1963) also notes that there are 10–14 rows of enlarged, keeled ventral scales, whereas the series examined here have 6–10 rows. This, however, may be due to a difference in counting where Taylor counted all keeled scale rows including the two ventrolateral rows on each side of the body and we counted only the ventral scale rows. They differ from Stuart & Emmett’s (2006) specimen in that only the frontal scale is keeled rather than all the head shields.

All specimens from Che Teal Chrum were found during the day generally 0.5– 1 m above the ground in the grassy, open areas between patches of secondary forest near the village. LSUHC 7795 from Pramaoy was found beneath a log during the late afternoon in a refuse pile at the edge of town. This species has been reported from the central and southeastern Cardamoms by Stuart & Emmett (2006) and from hilly eastern Cambodia by Stuart et al. (2006) .

Figures

Fig. 14. Takydromus sexlineatus from Che Teal Chrum.