THE LIZARDS OF THE GENUS JACHYDROMUS. 209 
contact with frontonasal ; tail 2 to 31 times length 
of head and body 
NO 
. 1. tachyvdromoides, 
Schleg. 
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 a) Sond. woltert, 1G. Bisch: 
2. 3 pairs of chin-shields (very rarely 4) ; ventral] 
plates keeled, often strongly ; 33 to 48 plates 
and scales round middle of body. 
Dorsal plates in 5 to 7 (rarely 8) longitudinal series ; 
ventral plates in 8 longitudinal and 20 to 30 (usually 
26 to 28) transverse series ; a single femoral pore 
oneach side... se 5 .. 4. TI. septentrionalis, 
Gthr. 
Dorsal plates in 7 or 8 longitudinal series; ventral 
plates in 8, more frequently 10, longitudinal and 27 
to 33 transverse series ; I or 2 femoral pores on each 
side. me ne o ee 
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 round 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 pe On Rhasvensis, Blox. 
Il. Head at least nearly twice as long as broad ; ven- 
tral plates strongly keeled. 
A. Dorsal plates in 7 to 10 longitudinal series ; ven- 
tral plates in 6 or § 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 23 to 34 times length of head and body .. 9. IT. smavagdinus, Bigr. 
28 to 32 plates and scales round middle of body ; 4 or 
5 pairs of chin-shields ; 4 supraoculars ; tail 34 to 4 
times length of head and body Sf .. 0. LF. sautert, Van Denb. 
B. Dorsal plates in 4 or 6 longitudinal series, ven- 
trals in 10 or 12; 28 to 38 plates and scales 
round middle of body; 3 supraoculars, third 
rarely in contact with frontoparietal; I to 3 
femoral pores on each side. 
Dorsal plates in 4 (rarely 6) longitudinal series, ventrals 
. I. formosanus, Blgr. 
On 
