3. DIPLOGLOSSUS. 285 
GB. Interparietal smaller than parietals; caudal scales 
not or but feebly keeled. 
* Canthus rostralis strong; loreal region concave. 
41 or 42 scales round the body ...... 6. phoawinus, p. 289. 
** Canthus rostralis obtuse. 
40 to 42 scales round the body ; occipital 
not larger than interpariectal ; ear- 
opening smaller than eye-opening .. 
46 to 50 scales round the body; occip- 
ital larger than interparictal; ear- 
opening at least as large as eye-open- 
ing; tail strongly compressed ...... 8. occiduus, p. 290. 
50 to 56 scales round the body; oc- 
cipital not larger than interparietal ; 
ear-opening at least as large as eye- 
OPCMNSs «ais ewes be ee eee ee eax 9. hewardiz, p. 291. 
49 to 51 scales round the body, dorsals 
with a cross elevation and marginal 
depression, making rows of pits .... 10. impressus, p. 291. 
81 to 33 scales round the body ...... 13. steendauchneri, p. 293. 
~I 
. striatus, p. 289. 
b. Frontal twice as long as broad. 
46 scales round the body............ 11. microlepis, p. 292. 
2. A single pair of shields be- 
tween the rostral and the 
prefrontal.............. 12. owenit, p. 292. 
B. Fore limb shorter than the skull. 
31 scales round the body ; parietals sepa- 
rated from the frontals by the fronto- 
parietals 2.0... cece eee eee ees 14. sagre, p. 293. 
37 scales round the body; no fronto- 
parietals ......... Pema 15. pleii, p. 294. 
1. Diploglossus monotropis. 
Camilia jamaicensis, Gray, Cat. p. 119. 
? Scincus monotropis, Kuhl, Beitr. Zool. u. Vergl., Anat. p. 128. 
Diploglossus monotropis, Wiegym. Herp. Mex, p. 36, and Arch. f. 
‘Nat. 1837, p. 130; Peters, Mon. Berl. Ac. 1864, p. 48; Cope, Proc. 
Ac. Philad. 1868, p. 93, and Journ. Ac. Phalad. (2) viii. 1878, 
p. 118; Bocourt, Miss. Sc. Mex., Rept. p. 391, pl. xxii. fig. 6; 
Giinth. Biol. Centr.-Am., Rept., p. 34, pl. xxiii. 
Tiliqua jamaicensis, Gray, Ann, N. H. ii. 1839, p. 293, 
Lateral teeth distinctly bicuspid. Head scarcely distinct from 
neck ; snout short and broad, canthus rostralis rounded ; ear-opening 
