416 TETID.B. 
27, SCOLECOSAURUS. 
Brachypus (non Swains.), Fitzing. N. Classif, Rept. p.20; Wregm. 
Herp, Mex. p.12; Gray, Cat. Liz. p. 57. 
Chalcis, part., Wagler, Syst. Amph. p. 196. 
Chalcides, part., Dum. § Bibr. v. p. 450. 
Tongue moderately elongate, arrow-headed. Teeth conical. Head 
with large regular shields ; frontonasal separating the nasals; pre- 
frontals present ; no frontoparietals; nostril pierced in the suture 
between the nasal and the first labial. Eyes minute, eyelids de- 
veloped. No ear-opening. Body and tail elongate, vermiform ; 
limbs rudimentary, the hind pair as much developed as the front 
pair, with four or three distinct, clawed digits. Scales smooth, 
forming regular annuli, and also longitudinal series on the belly; 
the dorsals narrow, hexagonal, overlapping the ventrals, broader, 
quadrangular, juxtaposed. A collar fold. No femoral or preanal 
pores (?). 
South America. 
1. Scolecosaurus cuvieri. 
Brachypus cuvieri, Gray, Cat. p. 57. 
Brachypus cuvieri, Fitz. 7. c. p. 50. 
Chaleis cuvieri, Wagl. 7. ¢. 
Chalcides cuvieri, Dum. § Bibr. p. 453. 
Upper head-shields: a pentagonal frontonasal, a pair of pre- 
frontals forming a short suture, a frontal, as broad as long, seven- 
sided, a pair of large parietals, a narrow quadrangular interparietal 
of equal length, and four supraoculars. Nasal twice as broad as 
high ; a loreal, half the size of the latter ; an infraorbital, resting 
on the third, fourth, and fifth labials; seven temporals ; six upper 
labials, posterior largest; four lower labials; mental very small; 
chin-shields, one anterior and three pairs, the first pair forming a 
suture ; collar-shields slightly enlarged, six or eight. Twenty-eight 
scales round the middle of the body, and forty from occiput to base 
of tail; ventrals longer than broad, forming six or eight longi- 
tudinal and twenty-six or twenty-seven transverse series ; a pair of 
enlarged pectoral shields. Praanal shields four, median posterior 
smallest. Digits four. Tail long, obtuse at the end, covered with 
imbricate elongate hexagonal scales, the upper smooth, the lower 
striated. Reddish brown, lighter beneath; a lighter, dark-edged 
line along each side of the back. 
millim. millim. 
Total length ...... let From end of snout 
Cade. oyiciesbag eterno 7 to vent ........ 47 
Width of head .... = 4:5 Fore limb........ 5 
From end of snout to Hind limb........ 6 
forelimb ...... 14 it eee ee 77 
South America. 
a-b. Adult. W. Indies (?). T. Bell, Esq. [P.]. 
c,d, Adult. S. America. 
