376 TRIIDA, 
snout with numerous small polygonal plates, there being seven to nine 
on a line between the frontal and the rostral; vertex with much 
larger plates, a frontal, a pair of fronto-parictals, and an inter- 
parietal being constantly well developed, the former largest, hexa- 
gonal; supraccular region with a row of five or six transversely 
enlarged plates bordered by granules; only one row of granules be- 
tween the frontal and the supraocular plates; occipital region with 
small irregular scales; rostral pentagonal, with truncate upper 
angle, separated from the anterior nasal by one plate; one anterior 
and two (or one) posterior nasals; three loreals, higher than broad, 
anterior smallest, third largest, separated from the labials by one or 
two rows of small plates; a series of infraorbitals, separated from 
the labials by one row of small plates; upper labials small, twelve 
or thirteen; temporal scales granular. Mental broadly trapezoid, 
its posterior edge in contact with an anterior, single, chin-shield, 
which is followed by three or four pairs of others forming (at least 
the two anterior pairs) a suture; eleven or twelve lower labials, the 
first or the two first forming a suture with the chin-shields, the 
others separated from the latter by granules; gular region with flat 
granules. Dorsal scales small, flat, round, granular, separated by 
minute granules ; on the flanks the scales are smaller still. Ven- 
tral plates square, much longer than broad, in forty to forty-five 
transverse* and twenty-six or twenty-eight longitudinal series. 
Preanal scales small, numerous, subequal. Fore limb anteriorly, 
and hind limb inferiorly, with enlarged flat scales, but without 
regular plates. Tail with rings of small keeled scales. Males with 
a small projecting conical tubercle on each side behind the vent. 
Olive or bluish above (in spirits); back with four longitudinal series 
of large black spots, white-edged laterally ; head, limbs, flanks, and 
tail, variegated with black ; lower surfaces whitish, uniform or with 
small black spots. 
millim. mullim. 
Total leneth, ...a<atd edadnaen ed's 410 307 
ea dis) cs artic Kis alan Seat eae % Snite. 10 26 
Width of head.................. 30 16 
Body tees! si eanar es oereegew eee 131 86 
POP. WD 4-5-4. ese ge yigeney cinder 58 43 
Find AMD. ad ace de ee ee eas 3. OF 70 
ALBUM Sioxisdie. cackatteh. i apd detesebeitey Hes ueMla aR ip eS es 250 195 
Chili. 
a, b,¢,d,e-f—. SQ. Chili. 
2. Callopistes flavipunctatus.. 
Callopistes flavipunctatus, Gray, Cat. p. 17. 
Aporomera flavipunctata, Dum. & Bibr. v. p. 72, pl. 51. 
Tejovaranus byanickii, Ste’nd. Denkschr. Ak. Wien, xxxviii. p. 93, 
pl. i., and Siteh, Ak. Wien, \xxviii. 1, 1879, p. 389. 
* Counted from the gular fold to the groin. 
