128 Lacertidce. 



Synopsis of the Species. 



I. Head not more than IJ times as long as broad. 



A. 4 supraoculars, first very small (rarely absent) ; dorsal plates in 5 to 8 



longitudinal series, ventrals in 8 or 10. 



1. 4 or 5 pairs of chin-sMelds (very rarely 3) ; ventral plates 



in 8 longitudinal series, feebly keeled or all except the 

 outer smooth ; 29 to 40 plates and scales round middle of 

 body. 

 Dorsal plates in 7 or 8 longitudinal series ; ventral plates in 22 

 to 28 transverse series ; 3 femoral pores on each side ; rostral 

 in contact with frontonasal; tail 1| to 2} times length of 

 head and body ... . T. amurensis, Peters, p. 129. 



Dorsal plates in 5 to 7 longitudinal series ; ventral plates in 

 22 to 25 transverse series ; 2 (very rarely 3) femoral pores 

 on each side ; rostral nearly always in contact with fronto- 

 nasal ; tail 2 to 3-^ times length of head and body. 



T. tachydromoides, Schleg., p. 132. 

 Dorsal plates in 8 longitudinal series ; ventral plates in 27 to 

 29 transverse series ; a single femoral pore on each side ; 

 nasals in contact behind rostral . . . T. woUeri, J. G. Fisch., p. 135. 



2, 3 pairs of chin-shields (very rarely 4) ; ventral plates keeled, 



often strongly ; 33 to 48 plates and scales round middle of 

 body ; tail 2 to 3| times length of head and body. 

 Dorsal plates in 5 to 7 (rarely 8) longitudinal series ; ventral 

 plates in 8 longitudinal and 24 to 30 (usually 26 to 28) 

 transverse series ; a single femoral pore on each side. 



T. septentrionalis, Gthr., p. 137. 

 Dorsal plates in 7 or 8 longitudinal series ; ventral plates in 8 

 or, more frequently, 10 longitudinal and 27 to 33 transverse 

 series ; 1 or 2 femoral pores on each side T. formosanus, Blgr., p. 141. 



B, 3 supraoculars, first large and in contact with the second loreal; 



dorsal plates in 4 longitudinal series, ventrals in 12. 

 Ventral plates in 22 to 25 transverse series ; 26 to 28 plates and 

 scales roxxnd middle of body ; 3 pairs of chin-shields ; 2 or 3 

 femoral pores on each side ; tail a little over twice length of 

 head and body T. Ichasiensis, Blgr., p. 144. 



II. Head at least nearly twice as long as broad ; ventral plates strongly keeled. 



A. Dorsal plates in 7 to 10 longitudinal series ; ventral plates in 6 or 8 



longitudinal and 26 to 31 transverse series ; a, single femoral pore 

 on each side. 

 37 to 45 plates and scales round middle of body ; 3 pairs of 

 chin-shields, rarely 4; 3 or 4 supraoculars; tail 2^ to 3| 

 times length of head and body . T. smaragdinus, Blgr., p. 146. 



28 to 32 plates and scales round middle of body ; 4 or 5 pairs 

 of chin-shields ; 4 supraoculars ; tail 3J to 4 times length of 

 head and body . . . T. sauteri, "Van Denb., p. 149. 



B. Dorsal plates in 4 or 6 longitudinal series ; ventrals in 10 or 12 ; 28 to 



38 plates and scales round middle of body ; 3 supraoculars, third 



