210 G. A. BOULENGER ON 
in 21 to 28 transverse series ; 3 (rarely 4) pairs of 
chin-shields ; collar more or less distinct ; head about 
twice as long as broad ; tail 3 to 5 times length of ; 
head and body . 50 .. Q. T. sexlineatus, Daud. 
Dorsal plates in 6 fongieuaiadl series, ventral in 30 
transverse series; 4 pairs of chin-shields ; no trace 
of a collar ; head 2} times as long as broad ; tail 
22 times as long as head and body .. 10. T. haughtonianus, 
Jerd. 
1, Tachydromus amurensis. 
Tachydromus amurensis, Peters, Sitzb. Ges. Naturf. Fr. Berl. 1881, p. 71; Bouleng. Cat. Liz., 
iil, p. 6 (1887); Giinth. Ann, and Mag. N.H. (6) i, 1888. p. 169; Bouleng. Ann. and Mag. 
N.H. (6) v, 1890, p. 137; Nikolsky, Herp. Ross., p. 92 (1905) ; Stejneg. Herp. Japan, p. 245 
fig. (1907). 
Body feebly depressed. Head about 1} times as long as broad, its depth equal 
to the distance between the anterior corner of the eye and the tympanum, its 
length 3f to 4 times in length to vent in males, 4} to 42 times in females; snout 
obtuse, with obtuse canthus, as long as or slightly shorter than the postocular part 
of the head. Pileus 13 to 2 times as long as broad. Neck as broad as the head. 
Limbs short; the hind limb reaches the elbow or tie axil in males, barely the wrist 
in females; foot as long as the head or slightly ionger. ‘Tail 12 to a little over 2 
times the length of head and body. 
Nostril pierced between three shields. Rostral not touching the nostril, broadly 
in contact with the frontonasal, which is broader than long and as broad as the in- 
teruarial space ; preefrontals forming a median suture or separated by a small azygous 
shield ;' frontal as long as its distance from the end of the snout, 1} to 14 times 
as long as broad, of nearly equal width throughout, or narrower behind than in 
front; parietal a little longer than broad (not more than 14), in contact with the upper 
postocular and with 3 or 4 temporals ; interparietal a little longer than broad ; occi- 
pital much shorter than the interparietal, its posterior border usually convex and 
projecting beyond the parietals. 4 supraoculars, first very small, sometimes divided 
into two, or in contact with the frontal, second and third equal or second the longer, 
fourth small but larger than the first, sometimes not in contact with the fronto- 
parietal;* 4, rarely 3 or 5, superciliaries, first longest, all in contact with the 
supraoculars, or with 2 or 3 granules between them. Nasal forming a suture with 
the anterior loreal’ above the small postnasal; posterior loreal longer than the 
anterior; 4 upper labials* anterior to the subocular, which is narrower beneath than 
above, sometimes very slightly. Temporal scales small, smooth or feebly keeled ; tym- 
panic shield present ; one or two enlarged upper temporals often present. 
4, rarely 5°, pairs of chin-shields, the two or three anterior meeting in the 
middle ; 198 to a4 Ue scales in a straight line between the symphysis of a chin- 
! In a male from Chabarovka, 2 In a female trom Chabarovka. 
Which is divided into two in a male from Chabarovka. + 5 on one side in a male from Chabarovka. 
5 In a female from Chabarovka. 
