2. NAKDOA. 



75 



visible from above measuring one half to two thirds its distance 

 from the frontal ; intemasals shorter than the prsef rentals ; frontal 

 a little longer than broad, separating the parietals, and in contact 

 with the occipital ; supraocular small ; one prsB- and two or three 

 postoculars ; ten or eleven upper labials, fourth and fifth, or fifth 

 and sixth entering the eye (or separated from it by a subocular). 

 Scales in 31 to 33 rows. Ventrals 250-265 ; anal divided ; sub- 

 caudals 39-47. Eeddish or purplish brown above, uniform or with 

 irregularly scattered small yellowish spots, uniform yellowish white 

 beneath. 



Total length 880 millim. ; tail 90. 



Southern Mexico. 



a-b. 2 (V. 263, 252; Tehuantepec. 



C. 44, 39). 

 c. Hgr. (V. 256 ; 0. 47). ? 



F. Sumichrast [C.]. 



G. Lennox Conyngliam, Esq. 



fP.]. 



2. NARDOA. 

 Fig. 4. 



Skull of Nardoa boa. 



Tortrix, part., Schleg. Phys. 8erp. ii. p. 1 (1837). 



Nardoa, part., Oray, Zool. Misoell. p. 45 (1842), and Cat. Sn. p. 93 



(1849). 

 Nardoa, Bum. ^ Bihr. Erp. Oin. vi. p. 444 (1844) ; Jan, Icon. G4n. 



p. 99 (1864). 



