108. PAKANCIA. 



291 



Maxillary teeth subequal, 17 or 18 ; maadibular teeth subequal . 

 Head small, not distinct from neck ; eye small, with round pupil ; 

 nostril directed upwards, in a semidivided nasal ; a single internasal ; 

 no prseocular, loreal and praefroutal entering the eye. Body cylin- 

 drical ; scales smooth, without apical pits, in 19 rows ; ventrals 

 rounded. Tail short ; subcaudals in two rows. 



North America. 



Skull of Farancia ahacura. 



1. Farancia abacura. 



Coluber ovivorus, part.. Baud. Rept. vi. p. 341 (1803). 



abacurus, HoWr. N. Am. Her p. p. 119, pi. xxiii. (1836). 



Homalopsis reinwardtii, Schleg. Phys. Serp. ii. p. 357 (1837). 

 Helicops abaourus, Holhr. op. cit. ed. 2, iii. p. 107, pi. xxvi. (1842). 

 Hydrops reinwardtii. Gray, Zool. Misc. p. 68 (1812). 

 Farancia drummondi. Gray, I. c. 



faaciata. Gray, Cat. p. 74 (1849). 



abacurus, Baird ^ Gir. Cat. N. Am. Rept. p. 123 (1853). 



Calopisma abacurum, Dum. ^ Bibr. vii. p. 342, pi. Ixv. (1854). 

 reinwardti, Jan, Arcli. Zool. Anat. Phys. iii. 1865, p. 243, and 



Icon. Gen. 29, pi. vi. (1868). 

 Hydrops abacurus, Garm. N. Am. Rept. p. 36, pi. i. fig. 5 (1883) ; 



H. Garm. Bull, lllin. Lab. iii. 1892, p. 281. 



Eostral broader than deep, just visible from above, forming a 

 Butnre with the internasal, which is much broader than long; 

 frontal about onco and a half as long as broad, longer than its 



V 2 



