= SCINCID. 133 
C. Palatine bones separated on the median line; supranasal 
shields present. 
Nostril pierced in the nasal; pterygoid bones toothed; limbs penta- 
dactyle, the digits not denticulated laterally. 
13. Eumeces, p. 365. 
Nostril pierced in a very small nasal, between the rostral, the first 
labial, the supranasal, and sometimes a postnasal ; palate toothless ; 
limbs short or rudimentary .... 14. Brachymeles, p. 386. 
Nostril pierced between an upper and a lower nasal; limbs penta- 
dactyle, the digits denticulated laterally, 
15: Scincus, p. 389. 
Nostril pierced between the nasal and the supranasal ; limbs rudi- 
- mentary or absent ............ 16. Ophiomorus, p. 393. 
II. Nostril pierced in the posterior border of the rostral, or between 
a nasal or a labial and the rostral. 
A. Palatine bones in contact on the median line. 
Nostril pierced between the rostral and a very small nasal, which 
may be reduced to a narrow ring. 18. Scelotes, p. 408. 
B. Palatine bones separated on the median line. 
1. Supranasals present; first upper labial not touching the 
nostril. 
Nostril pierced between the rostral and a very small nasal, in an 
emargination of the former shield. 17. Chalcides, p. 398. 
Nostril pierced between the rostral and a very small nasal, which is 
situated between the former shield and the first labial. 
19. Herpetoseps, p. 416. 
2. Supranasals present; first upper labial entering the nostril. 
Nostril pierced between the rostral, the supranasal, the postnasal, 
and the first labial; no frontoparietals. 
20. Sepsina, p. 417 
Nostril pierced between the rostral and the first labial. 
21. Melanoseps, p. 422. 
Nostril pierced between the rostral, the supranasal, and the first 
labial ; frontoparietals present .. 22. Sepophis, p. 423. 
3. No supranasals ; nostril entirely in the rostral. 
? 23. Chalcidoseps, p. 423. 
III. Nostril pierced in the very large rostral, with the posterior 
border of which it is connected by a horizontal suture. 
Lower eyelid present ............ 24, Acontias, p. 424. 
No eyelids ........ 0. ee eee eee 25. Typhlacontias, p. 429. 
