BEPTILIA. 
11 
This species of Phrynocephalus is very closely allied to the Persian P. maculatus , 1 and 
probably to the true P. caudivolvulus, Pallas nec Gunther. It appears to be a much larger 
form than the latter. Prom the former it is distinguished by its limbs, when adult, being 
shorter, the fore limb, as a rule, not reaching the thigh, whereas it always reaches or even 
exceeds it in P. maculatus. The fifth toe of the hind foot in P. maculatus is longer ; the 
fringe on the outer edge of the fourth toe less developed, and there is scarcely any fringe on 
fhe inside of the toe. But the most important distinctions are in colouration. P. maculatus , 
°f which I have collected many living examples, never has a red spot behind the shoulder, 
an d it always has a black tip to the tail, below at all events. The colouration of the tail in 
-Phuynocephali is, as a rule, very constant. 
P - axillaris is said by Dr. Stoliczka to be very active, to run at a great pace, and to 
* i;iVe the habit of coiling its tail upwards at the end. It, doubtless, inhabits open plains, like 
lts Persian ally. 
Prom the above, it would almost appear as if I had proposed a new species on characters 
'’f no more importance than those which I have just before shown to be insufficient in the 
ease 0 f P. forsythi. But in the present case the characters appear constant, probably 
"'cause the two for ms P. axillaris and P. maculatus inhabit distant and isolated areas, 
whilst in the case of P. forsythi and P. theobaW there is great variation, and no constant 
distinction can be detected even in colouration ; moreover, so far as my experience of the 
£enus goes, I should say that the red patch behind the axil in P. axillaris and the black 
Ta U tip in p> maculatus are more important than the back markings which distinguish 
• forsythi. When P. maculatus exhibits bright colours, as it very often does, they are 
c ° n fined to the lower surface of the tail and hinder parts of the thighs. 
Family — G ECK 0 TIB M. 
7. Teuatoscinctts keyseiilingi. 
Strauch : Bull. Acad. Sei. Sfc. Pet., 1863, vi, p. 480; — Mel. Biol., vi, p. 554; — Zool. Record, 1864, 
p. 111. 
Kuli-yailang, Yarkandi (Scully). 
1, Yangihissar, Eastern Turkestan. 
. This is a new locality for this very remarkable gecko. Teratoscincus heyserlingi was 
a initially discovered by Count Keyserling in the Persian province of Kliorassan, at a spot 
* a led Sar-i-chah, and it has since apparently been found in Western Turkestan, as it is 
J nc ll( fed by Severtzoff in his list of the Reptiles 2 found in that province. It thus appears 
* ^ lay c a considerable distribution in Central Asia. The original description was copied in 
le Zoological Record.” 
1 The single specimen obtained by Dr. Stoliczka is not in a very good state oi preservation, 
^ the characters are easily distinguishable. The following is a description : 
1 Anderson: Pvoc. Zool. Soc., 1872, p. 389; — Eastern Persia, ii, p. 331. 
2 Turk. Jev., p. 71. 
