30 Mr. G. A. Boulenger on Reptiles and Batrachians 
15. Lygosoma fuscum, D. & B. 
16. cyanurum, Less. 
ile @ Mivarti, Blgr. 
18. cyanogaster, Less. 
19. —— Baudinii, D. & B. 
20. Lygosoma tetratenia, sp. n. 
Section Hmoa. Habit lacertiform ; the distance between 
the end of the snout and the fore limb is contained once and 
one third to once and two fifths in the distance between axilla 
and groin. Snout rather long, pointed. Lower eyelid with 
an undivided transparent disk. Nostril pierced between three 
small shields—a nasal, a postnasal, and a supranasal ; fronto- 
nasal as long as broad, in contact with the rostral and with 
the frontal; frontal shorter than the frontoparietal, which is 
single and fused with the interparietal, in contact with the 
first and second supraoculars; parietals in contact behind; 
four supraoculars, second and fourth longest; seven supra- 
ciliaries ; a pair of nuchals and a pair of temporals border the 
parietals ; five upper labials anterior to the large subocular. 
Ear-opening oval, a little larger than the palpebral disk, with 
three very short lobules anteriorly. 26 or 28 scales round 
the middle of the body, all smooth; dorsals, especially the 
two vertebral rows, largest, laterals smallest. Praanal 
scales feebly enlarged. The hind limb reaches the elbow or 
the axilla. Digits moderately elongate, flattened, except at 
the end, which is subcylindrical; subdigital lamelle very 
fine, smooth, about 50 under the fourth toe. Tail nearly 
twice as long as head and body. Olive above, with four 
broad black stripes, the outer of which extend to the end of 
the snout, passing through the eyes; belly whitish or bluish ; 
throat and lower surface of limbs bluish or greenish. 
millim. 
otal Loney.) sist. ean t ae hee 169 
ETQRIS © 155.2505 satete lata lege ta co ae Fale Rae 14 
Widthiof head’... 4i.5 sek a eee 8 
BEG on, vise od ae 45 
Bore dumb, csc ees katie crac 20 
Pan Cin s Hacc svctsictes crore ot eee 32 
OU ary race tonsa: eyeeh Xitel mach wire eae 110 
Several specimens. 
