Lizards in the British Museum. 433 
Mabuia polytropis. 
Snout moderate, obtuse. Lower eyelid with an undivided 
semitransparent disk. Nostril behind the vertical of the 
suture between the rostral and the first labial; a postnasal ; 
anterior loreal in contact with the first labial; supranasals in 
contact behind the rostral or narrowly separated ; fronto- 
nasal broader than long; prefrontals forming a median 
suture; frontal as long as or a little shorter than the fronto- 
parietals and interparietal together, in contact with the second 
and third supraoculars ; four supraoculars, second largest and 
usually touching the preefrontal ; six or seven supraciliaries ; 
frontoparietals distinct; interparietal a little longer than the 
frontoparietals, completely separating the parietals ; a pair of 
nuchals; subocular between the fourth and fifth or fifth and 
sixth upper labials, at least twice as long as these shields, 
not narrowed inferiorly. Har-opening oval, smaller than the 
eye-opening, with two or three very small lobules anteriorly. 
Dorsal scales with nine or eleven strong keels; 32 to 36 
scales round the middle of the body, nearly equal in size. 
The hind limb reaches the elbow of the adpressed fore limb or 
a little beyond. Subdigital lamellae smooth. Tail once and 
three fourths to nearly twice as long as head and body. 
Bronzy olive above, with dark brown spots forming more or 
less regular transverse bars; a dark brown streak on each 
side of the head and neck, passing through the eye, becoming 
more or less indistinct on the body; below this brown band 
a greenish-white streak ; a black spot in the axilla; lower 
parts pale green. 
a millim 
Motalglene thy iyi. elaine ah deeo ee 282 
16 (GEG eraet cs nee RE RT lene Oe eR 20 
Wirdithnot heads rsa ioe scala. 14 
BOG iNet b 0 tacos delay hae cattle 77 
OTe NOD). a. sees e fe kan nee 30 
Elina climate arse athe ohetaucreee eee 40 
TDL 2 oe) Pa Rn i ee Be Bae er gta oe Ma 185 
One specimen from the Benito River district, Gaboon, and 
three from Efulen, S. Cameroon. Collected by Mr. G. L. 
Bates. 
Closely allied to M. Raddonit, Gray, with which I now 
regard MM. benitensis, Blgr., as identical. 
Lygosoma louisiadense. 
Section Hinulia. Uabit lacertiform ; the distance between 
the end of the snout and the fore limb is contained once and 
