CATAL06TIE 



SNAKES. 



Fam. 7. COLXJBRID^. 



Subfam. 2. GOLVBUINM. 

 (Continued.) 



Synopsis of the Genera. 

 (Continued from Vol. I. p. 180.) 



II. Hypapophyses absent in the posterior dorsal vertebrsB, the lower 

 surface of which is smooth or with a low keel. 



A. Posterior maxillary teeth increasing in size ; anterior maxil- 



lary and mandibular teeth strongly enlarged ; pupil vertically 

 eUiptic. :^ 



Anterior maxillary teeth separated from the rest by an interspace. ( ^r 



48. Lycodon, I. p. 348. 



Two or three middle maxillary teeth small, separated from the 

 anterior and posterior by distinct interspaces. ~- 



49. Dinodon, I. p. 360. - 



B. Anterior maxillary teeth not enlarged, middle and posterior 



longest ; pupil vertically elliptic. ^ 



50. Stegonotus, I. p. 364. 



C. Anterior and middle maxillary teeth not enlarged, posterior 



increasing in size or the last strongly enlarged. 



1. Palatine and pterygoid bones toothed ; pupil vertically 

 eUiptic. 



Maxillary teeth 8 to 10 ; scales with apical pits. 



51. Dryocalamus, I. p. 369. 



VOL. II. B 



