17. PRLONODACTYLUS. 393 
3. Prionodactylus quadrilineatus. 
Cercosaura (Pantodactylus) quadrilineata, Boettger, Ber. Senck. Ges. 
1876, p. 141, pl. —. 
Allied to the two preceding. Head-shields as in P. oshaughnessyt, 
except in the presence of a pair of large postoccipitals, which are 
quite as large as the occipitals; interparietal much larger than the 
parietals. Collar quite indistinct. Dorsal scales very narrow, as in 
P. argulus ; twenty-seven scales, including the ventrals, round the 
middle of the body, and thirty scales from the occiput to the base of 
the tail. Ventral plates in four longitudinal series. Preeanal 
plates five, equally large, a pair anteriorly, three on a line pos- 
teriorly. Nine femoral pores oneach side( g). Olive-brown above ; 
a whitish streak on each side of the body, beginning from above the 
ear, and another from axilla to groin; lower surfaces whitish, 
throat, sides of belly and base of tail scantily dotted with black. 
millim. millim. 
Total length.......... 152 From end of snout to vent 40°5 
Head: reav oueuee nes 10 Forelimb ............ 13°5 
Width of head........ 6 Hindlimb ............ 175 
From end of snout to Tail “ vawudetie caida ees 111-5 
fore limb.......... 16°5 
S. Paul, Brazil. 
4. Prionodactylus manicatus. 
Cercosaura (Prionodactylus) manicata, O'Shaughn. Proc. Zool. Soe. 
1881, p. 231, pl. xxii. fig. 3. 
Head depressed, body moderately elongate. Head-shields normal ; 
prefrontals forming a short suture; interparietals a little larger 
than parietals ; median occipital small; temples with large shields 
above, with small keeled scales inferiorly ; loreal large ; six or seven 
upper and five or six lower labials ; chin-shields, one anterior and 
four pairs, the two first puirs forming a suture, the two others 
widely separated by large shields; a double longitudinal row of 
transversely enlarged gulars; collar-shields six, the two median 
extremely large. Dorsal scales strongly keeled, narrow ; lateral 
scales small, keeled, imbricate; forty-three scales, including the 
ventrals, round the middle of the body ; thirty-five to thirty-eight 
scales from the occiput to the base of the tail. Ventrals large, in 
six or eight rows, on the median rows a little smaller than on the 
next, those of the outer rows rounded; eighteen or nineteen trans- 
verse rows. Preanals five, a small anterior pair and three large 
posterior, the median very narrow. Digits distinctly toothed in- 
feriorly. Limbs with large shields; lower surface of arm and 
hinder side of thighs granulate; upper surface of -hind limbs with 
imbricate keeled scales. Male with thirteen or fourteen femoral 
pores on each side, female with twelve to fourteen. Upper and 
lateral caudal scales elongate hexagonal, keeled; lower smooth, the 
