258 ZONURIDE. 
posterior keeled, in contact with a row of five large shields; gular 
scales flat, subquadangular or polygonal, slightly imbricate, the 
anterior smallest, the others neariy as large as the ventrals; scales 
under the neck rounded, strongly imbricate; sides of the neck with 
short erect spinose scales. Dorsal scales relatively small, quadran- 
gular, striated or more or less distinctly keeled, forming regular 
transverse series, which sometimes alternate on the median line; 
lateral scales same as dorsals, but strongly keeled and serrate; a 
distinct lateral fold; thirty-two to forty-four transverse series of 
scales from occiput to base of tail, the largest containing thirty-two 
to thirty-eight scales. Ventrals quadrangular, scarcely imbricate, 
smooth, forming twenty or twenty-two longitudinal and thirty-four 
to thirty-six transverse series. Prseanal scales very irregular. Limbs 
with keeled imbricate scales, except under the thighs, where they are 
smooth. Femoral pores ten to sixteen on each side. Tail with 
whorls of keeled spinose scales, strongest on the sides. Brown or 
yellowish-brown above, with more or less distinct darker spots; a 
blackish spot on each side of the neck; lower surfaces yellowish or 
reddish. 
millim millim 
Total length ........ 251 Fore limb ...... 39 
Head <a sss gt oe aaten tes 26 Hindlimb .... 56 
Width of head ...... 22 Tail sus geese ins 145 
Body 33s cen cuatine'e eS 80 
South Africa. 
a-d. 3, Q, & her. S. Africa. Sir A. Smith [P.]. (Types.) 
ef od. 8. Africa. 
g. Yg. S. Africa. Earl of Derby [P.]. 
h-t. ¢. Orange River. D. Kannemeyer, Fsq. [P.]. 
k. Skeleton. S. Africa. Sir A. Smith [P.]. 
6. Zonurus pustulatus. 
Zonurus pustulatus, Peters, Mon. Berl. Ac. 1862, p. 19. 
In general structure similar to the preceding, but distinguished by 
the much smaller anterior median gulars, which are almost granular, 
by the very large femoral pores (in the male), which are in two or 
three series, and by the scales of the lower surface of the thighs, 
which increase in size posteriorly. Two large preanal scales, as in 
Z. cordylus. Dorsal scales in thirty-one or thirty-two cross rows, 
from occiput to base of tail. Olive-brown, darker spotted, and 
with scattered vellow spots ; lower surfaces brownish yellow. 
Total length 195 millim.; tail 1138 millim. 
Hereroland, 8.W. Africa. 
7. Zonurus capensis. 
Hemicordylus capensis, Gray, Cat., p. 48. 
Cordylus (Hemicordylus) capensis, Smith, Mag. N. H. (2) ii. p, 82 
and Ill. 8. Afr., Rept. pl. xxvii. fig. 2, pl. xxx. fig. 6, : 
Zonurus capensis, Dum. § Bibr. y. p. 360. 
