7. MABUIA. 153 
ttt Ear-lobules long. 
81 to 34 scales round the body; four 
supraciliaries; interparietal larger than 
the frontoparietals ..............05 15. socotrana, p. 168. 
28 to 32 scales round the body ; five 
supraciliaries ; interparietal not larger 
than the frontoparietals............ 18. homalocephala, p. 170. 
tr Subdigital lamelle keeled ; 30 to 32 scales round 
the body. 
Nasals separated; dorsal scales strongly 
keeled ; scales on the anterior border 
of the ear not differentiated ........ 49. trivittata, p.195. 
Nasals separated; dorsal scales feebly 
keeled ; two or three large projecting 
FP auricular lobules ................ 50. occidentalis, p. 196. 
Nasals in contact behind the rostral.... 51. ivensii, p. 197. 
** 34 or more scales round the middle of the body. 
34 to 38 scales round the body; the 
adpressed hind limb reaches nearly 
the axil; ear-opening at least twice 
as large as the transparent palpebral 
Wg sits awe eha ence eee essai ieee Rin hubanee 5. punctata, p. 160. 
36 scales round the body; the hind limb 
does not reach the elbow of the ad- 
pressed forelimb; snoutshort ...... 19. gruetzneri, p.171. 
36 to 44 scales round the body; the 
adpressed hind limb reaches the elbow 
or beyond ; ear-opening a little smaller 
than the transparent palpebral disk.. 52. guinqueteniata, p.198. 
y- Dorsal scales bicarinate; 30 to 32 scales round the 
body. 
First supraocular in contact with the 
Frontal csgw ccs weed 2G nay utara ener 17. brevicollis, p. 169. 
First supraocular not touching the 
frontal” siswcie sos Beene gad 41. longicaudata, p. 189, 
6. Dorsal scales perfectly smooth. 
* Kar-opening entirely exposed; 28 to 34 scales round 
the body. 
One pair of nuchal shields; snout short, 
obtuse; tail not twice as long as head 
and body; preanals not or scarcely 
enlarged, six or seven bordering the 
anal Cleft) asusadicavacsaues eens es 43. agilis, p. 190. 
One pair of nuchals; tail twice as long 
as head and body; three supraoculars ; 
a black vertebral line.............. 44. dorsivittata, p. 192. 
