Tachydromus. 



181 



cauthus rostralis ; usually a more oi* less distinct light, dark-edged 

 streak from the lower eyelid to the shoulder, passing through the 

 lower j^art of the ear-opening, sometimes continued as a series of spots 

 to the base of the hind limb. Lower parts yellowish or greenish white. 

 Measurements (in millimetres) : 



From end of snout to vent 



„ „ ,, fore limb 



Length of head 

 Width of head 

 Depth of head 

 Fore limb 

 Hind limb 

 Foot 

 Tail 



1. (^ , Chaborowka. 2. ^, Seoul. 

 4. 9 > Chaborowka. 



Particulars of Specimens ExamineiL 

 ^ Chaborowka, Ussuri 



J Seoul, Corea 

 9 Corea . 



50 30 8 8 22 10 22 



19 



1. Length from snout to vent (in millimetres). 2. Scales and plates round 

 middle of body. 3. Longitvidinal series of dorsal plates and scales. 4. Longi- 

 tudinal series of ventral plates. 5. Transverse series of ventral plates. 6. Plates 

 in collar. 7. Gvilar scales in a straight median line. 8. Femoral pores on each 

 side. 9. Lamellar scales under fourth toe. 



Same explanation for the following tables. 



In addition to the above, I have examined the type, a female from 

 Kasakewicha, on the Amoor, preserved in the Berlin Museum. 



Habitat. — South-Eastern Siberia, Manchuria, Corea. 



T. amurensis is the most iacer^a-like species of the genus, and its 

 agreement in many respects with L. vivi])ara is the more noteworthy 

 for the fact that the latter is the only species of Lacerta which extends 

 eastwards to the Pacitic Ocean.* The agreement is not only in the 

 shape of the head, body and limbs, and the comparatively short tail, 



* The easternmost specimens of that species show, on an average, a lower 

 number of femoral pores (5 to 11) than the western. 



