62 THE EEPTILES OF EGYPT. 
"■Phalanx guttata." This phalanx is capable of being divided into two sections, 
depending on the formation and degree of tumescence of the nostril — one in which it 
is swollen, and the other in which it is tubular. 
Certain members of the second Phalanx, such as the geckos of Syria, lead more or 
less into the geckos of Algeria, and Eritrea and Shoa ; but, at the same time, they are 
so distinct that they never could be confounded with the geckos from the three last- 
mentioned localities, or with the typical form from Egypt ; neither could an Eritrean 
or Shoan gecko be ever mistaken for one from Algeria or from Egypt. The North-west 
African geckos stand as var. oudrii, and the Eritrean I propose to call var. ragazzi, in 
honour of Dr. Ragazzi, whose collections along the shores of the Red Sea and in 
Eritrea and Shoa have thrown so much light on the herpetology of that region. 
I have in the synonymy attempted, by breaking it up, to show the forms which have 
been dealt with by those who have written on this group. 
The two species of the genus are distinguished as follows : — 
Body covered with uniform small granules P. homolepis. 
Body covered with small granules and intermixed keeled tubercles P. hasselquislii. 
Ptyodactylus hasselquistii, Donndorff. (Plates VI. & VII.) 
I. Phalanx typica. (Plate VI. figs. 1-3.) 
Lacerta gecko, Hasselq. & Linn. Iter Palaest. 1757, p. 306 ; part., Syst. Nat. i. 1766, p. 365 ; 
Forskal, Descr. An. 1775, p. viii et p. 13. 
Stellio gecko, part., Schneider, Amph. Phys. 1792, p. 12. 
Lacerta hasselquistii, Donndorff, Zool. Beytr. 1798, iii. p. 133 ; Bechstein, Lacep. Nat. Amph. ii. 
1800, p. 262. 
Le Gecko des maisons, Cuv. Regn. An. ii. 1817, p. 49 ; nouv. ed. ii. 1829, p. 56. 
Gekko ascalabotes, part., Merr. Tent. Syst. Amph. 1820, p. 40. 
Gecko lobatus, Licht. Verz. Doubl.Berl. Mus. 1823, p. 103 ; Is. Geoffr. St.-Hil. Descr. del'figypte, 
H. N. i. ? 1827, p. 132, pi. 5. fig. 5; id. op. cit. 8voed. xxiv. 1829, p. 37; Schinz, Nat. Abbild., 
Rept. 1833-35, p. 74, tab. 17; Boettger, Kat. Rept. Mus. Senck. 1893, p. 27. 
Gecko maculatus, Schinz, op. cit. tab. 16. 
Ptyodactylus lobatus, Gray, Ann, Phil. (2) x. 1825, p. 198; Fitz. Syst. Rept. 1843, p. 96; Blgr. 
Cat. Liz. B. M. i. 1885, p. 110 (specimens d and e) ; Trans. Zool. Soc. xiii. 1891, p. Ill 
(specimens 9 and 10) ; Strauch, Mem. Ac. St. Petersb. (vii.) xxxv. 1887, p. 35 (? Egyptian and 
Kosseir specimens); Boettger, Kat. Rept. Mus. Senck. 1893, p. 27 ? (Egyptian specimen). 
Ptyodactylus hasselquistii, D. & B. iii. 1836, p. 378, pi. 33. fig. 3; Riippell, Mus. Senck. iii. 1845, 
p. 300 ; Dumeril, Cat. Rept. Paris Mus. 1851, p. 40; Gasco, Viag. Egitto, pt. ii. 1876, p. 110 ; 
Boutan, Rev. Biol. Nord France, v. 1893, p. 336, fig. 1 ; Anderson, Herp. Arabia & Egypt, 
1896, p. 56 & p. 98, typical form. 
Ptyodactylus gecko, Gray, Cat. Liz. B. M. 1845, p. 151 (specimen d). 
Ptyodactylus gecco, Klunzinger, Zeitschr. Ges. Erdk. Berl. xiii. 1878, p. 94. 
