THE LIZARDS OF THE GENUS TACHYDROMUS. 217 



as long as broad ; occipital small, much shorter than the interparietal, rarely nearly 

 as large, often separated from it by one or two small shields or by the parietals 

 meeting in the middle. 4 supraoculars, first very small and rarely broken up into 

 2 or 3 granules, or in contact with the frontal, 1 or absent, 2 second and third equal 

 or second the longer, fourth small but larger than first and rarely broken up into 

 2 or 3 ; 4 or 5 superciliaries, first or first and second largest and usually in con- 

 tact with the supraoculars ; a series of granules, rarely complete, between the 

 supraoculars and the superciliaries. Nasal forming a suture with the anterior loreal 

 above the postnasal, 3 often forming a very short suture with its fellow behind the 

 rostral; anterior loreal shorter than the second, sometimes divided into two 4 and 

 forming a triangle with the postnasal ; 5 usually 4 upper labials, sometimes 3 or 5/ 

 anterior to the subocular, which is usually narrower beneath than above. Tem- 

 poral scales small, more or less distinctly keeled ; 1, 2, or 3 enlarged upper temporals, 

 the first not in contact with the fourth supraocular; tympanic shield present, narrow 

 and elongate. 



3 pairs of chin-shields,' the first or first and second meeting in the middle; 

 20 to 30 gular scales between the symphysis of the chin-shields and the median collar- 

 plate, anterior granular and smooth, posterior enlarged, imbricate, pointed and 

 keeled, and merging gradually into the collar, which is composed of 8 to 12 pointed, 

 keeled plates. 



Dorsal plates obtusely pointed or rounded behind, in 4 longitudinal series, with 

 1 or 2 series of smaller plates on the median line, and rarely 8 with an additional 

 series of smaller plates between the two outer series, making 5 to 8 altogether in 

 the middle of the body ; often 6, 7, or 8 in front and 4 or 5 behind ; 2 to 4 series of 

 keeled scales near the ventral plates, separated from the dorsals by a granular area. 

 Ventral plates in 8 longitudinal and 24 to 30 (usually 26 to 28) transverse series, 

 obtusely pointed, more or less strongly keeled, and shortly mucronate. 34 to 48 

 plates and scales round the middle of the body (usually 35 to 40). Prseanal plate 

 moderately large or rather small, smooth, rarely feebly bicarinate and longitudinally 

 bisected/ often not broader than long, with smaller, usually keeled plates in front and 

 on the sides. 



Upper surface of limbs with rhombic keeled scales and granules. A single 

 femoral pore on each side. Subiigital lamellae partly single and partly divided, 

 mostly divided, 23 to 29 under the fourth toe. 



1 In a male from Kiu Kiang. 



2 In a female from Kiu Kiang and in a young from Da-zel Valley, Chikiang. 



- Unless its posterior part be severed to form a second postnasal, as in a female from Kiu Kiang. 

 * In 4 specimens from Kiu Kiang, in one from Da-zel Valley, and in one from Kuatun. 



5 As in Lacerla agilis.- In a male from Kiu Kiang, the postnasal forms a suture with the second loreal, below the 

 anterior. 



6 3 on both sides in a female from Kiu Kiang, on one side in a female from Chusan and in a young from Che King 

 near Chusan ; 5 on both sides in a male from Kuatun and in a female from Ningpo ; on one side in two males from Kiu 

 Kiang and in a female from Shanghai . 



1 3 on one side and 4 on the other in two specimens from Kiu Kiang and in another from Kuatun. A similar 

 example of asymmetry has been recorded by Werner. 



- Male and female from Kuatun, female from .Shanghai. v Female from Kiu Kiang. 



