144 ON LIZARDS FROM THE MUSEUM OF HALLE. [ Mar. 19, 
lamellee. Head covered with large granules anteriorly, posteriorly 
with minute granules intermixed with round tubercles; rostral 
quadrangular, nearly twice as broad as long, with median cleft 
above; nostril pierced between the rostral, the first labial, and 
three nasals; eight or nine upper and six lower labials; mental 
trapezoid, followed by three transverse series on enlarged flat granules. 
Body covered above with small granules and large trihedral tuber- 
cles, which are about as broad as long, and form sixteen longitudinal 
series. Abdominal scales large, cycloid, imbricate, smooth, in sixteen 
longitudinal series in the middle of the body. No femoral or pre- 
anal pores. Tail cylindrical, with rings of large keeled tubercles. 
Pale brown above, with seven darker transverse bands separated by 
narrow interspaces ; a dark band on each side of the head, from the 
nostril, through the eye, to above the ear; tail with five dark-brown 
cross bands; lower surfaces white. 
millim. 
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er ek SP Re SAPS PE BA. 17 
Whadth off headers: 20, at Suen Ay arias ie ED) 
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Wail cake AS oh ei ks 00) Be, enetde 59 
A single male specimen from Mendoza. 
Closely allied to G. fasciatus, but differing in the larger granules 
on the forehead, the larger ventral scales, and the absence of regular 
chin-shields. 
6. Urosrropuus scaputatus. (Plate XV. fig. 2.) 
Leiosaurus scapulatus, Burmeister, Reise La Plata, ii. p. 522 (3). 
Leiosaurus multipunctatus, Burm., ibid. p. 524 (@ ). 
Leiosaurus marmoratus, Burm., ibid. p. 524 (young). 
Head once and two fifths as long as broad; snout rounded, with 
very short canthus rostralis; nostril nearer the end of the snout 
than the orbit; tympanum oval, larger than the eye-opening ; upper 
head-scales smooth, smallest on the supraorbital region, in two or 
three series between the orbits; occipital not enlarged; a series of 
enlarged infraorbitals, second largest; eleven upper and as many 
lower labials. Gular scales small and granular, enlarged and flat 
near the labials and in front of the gular fold. Body subcylindrical ; 
seales on upper surface very small, granular, of lower surfaces flat, 
slightly imbricate, all smooth. The adpressed hind limb reaches 
the ear in the male, the gular fold in the female. ‘Tail as long as or 
slightly longer than head and body, not curly, covered with verticils 
of small, squarish, smooth scales. Pale olive above, uniform in the 
male, black-spotted in the female and young; tail with more or less 
distinct darker rings ; lower surfaces whitish, throat of female spotted 
with black ; a black vertical bar in front of the shoulder. 
