170 , BCINCID A. 
first and second upper labials; supranasals in contact behind the 
rostral; frontonasal broader than long; prefrontals forming a 
short median suture, or narrowly separated ; frontal as long as the 
frontoparietals and interparietal together, in contact with the first, 
second, and third supraoculars; four supraoculars, second largest ; 
five or six supraciliaries ; frontoparietals distinct, shorter than the 
interparietal, which entirely separates the parietals; a pair of 
nuchals; subocular between the fourth and fifth, or fifth and sixth 
upper labials, not narrowed inferiorly. Ear-opening oval, sub- 
triangular, smaller than the eye-opening, with two or three short 
obtuse lobules anteriorly. Dorsal scales usually bi-, sometimes 
tricarinate ; 30 to32 scales round the middle of the body, subequal. 
The adpressed limbs slightly overlap. Subdigital lamelle smooth. 
Olive-brown above, with longitudinal darker streaks occupying the 
sides of each dorsal scale; an ill-defined dark lateral band, edged 
above by a lighter band; small white spots scattered on the back 
and sides; lower surfaces yellowish, throat brown-spotted. 
millim. ; millim 
Total length ...... 285 Fore limb........ 38 
Head nese seat. « 28 Hind limb........ 48 
Width of head .... 22 Tail (reproduced) .. 150 
Body ice ccve a cees 107 
Abyssinia; Aschik, island in the Red Sea. 
a, Ad. Wonber Harattib, Lebka valley, W. Jesse, Esq. [C.]. 
Abyssinia. 
18. Mabuia homalocephala. 
Euprepis smithii, Gray, Cat. p. 112. 
vittatus, Gray, J. c. p. 113. 
Euprepes homalocephalus, Wiegm. Isis, 1828, p. 874*; Peters, Mon, 
Berl. Ac, 1864, p. 51. 
? Tiliqua subrufa, Gray, Ann. N. H. ii. 1838, p. 289. 
Euprepes smithii, Smith, Ill, S. Afr., Rept. pl. xxxi. fig. 2. 
Snout short, obtuse. Lower eyelid with an undivided trans- 
parent disk. Nostril just above or behind the vertical of the suture 
between the rostral and the first labial; a postnasal; anterior loreal 
in contact with the first labial; frontonasal broader than long, in 
contact with the frontal, and usually also with the rostral ; frontal as 
long as, or a little shorter than, the frontoparietals and interparietal 
together, in contact with the second and third supraoculars ; four 
supraoculars, second largest and touching the prefrontal; five 
supraciliaries ; frontoparietals distinct, as large as or a little smaller 
than the interparietal; parietals forming a suture behind the latter 
shield ; a pair of nuchals; subocular between the fourth and fifth 
upper labials, usually not twice as large as these shields, not nar- 
rowed inferiorly, ar-opening oval, oblique, about as large as-the 
. * Type examined. 
