-12 REPTILES. 



Var. A. The black cross bands encircling the whole body ; on 

 the belly the rings of each pair confluent, and forming a large 

 irregular spot ; crown black. 



a. Large specimen. Para. Presented by J. P. G. Smith, Esq. 



b. Young : not good state. Brazil. Old Collection. 



c. Large specimen. Mexico. From Hugo Finck's Collection. 

 d-f. Adult and half-grown. Mexico. From Hugo Finck's 



Collection. 

 g, h. Adult and half- grown. Mexico. From Mr. Warwick's 



Collection. 

 i. Young. Texas. From Mr. Brandt's Collection as Coronellu 



coccinea. 

 k. Young. North America. Presented by Sir R. Murchison. 

 I. Adult. North America. 

 m. Half-grown. North America. Old Collection. 



Var. B. Posterior band of one pair on the sides confluent with 

 the anterior of the following pair, and forming a large dorsal 

 ring ; belly with some small irregular black spots ; head black 

 or white, with some obsolete markings. 



n-s. Half-grown and young. New Orleans. From M. Salle's 



Collection. 

 t . Half-grown. North America. Presented by G. Henshaw, Esq. 



Var. C. Head and belly uniform black ; the bands of each pair 

 confluent on each side of the back, so as to form a dorsal and a 

 lateral ring, each enclosing a round yellow spot. 



u. Half-grown. Mexico. From Mr. Warwick's Collection. 



Coronella coccinea, Schleg. Ess. p. 67, is quite unknown to 

 lis, and having only seventeen longitudinal rows of scales, it 

 cannot be introduced into the synonymy. 



7. Liophis, Wagler. 



Body and tail moderate ; head rather short, depressed ; one 

 loreal, one anterior, two posterior oculars ; two nasals, nostril 

 between. Scales in seventeen to twenty-one rows. Posterior 

 maxillary teeth longest, not grooved, and separated from the 

 anterior ones by an interval. Ventral shields generally with 

 square black blotches. Warmer parts of America. 



Liophis, Wagl. Syst. Amphib. p. 187 ; Dum. §Bibr. vii. p. 697. 

 Coronella, sp., Xenodon, sp., Schley. Ess. pp. 50, 95. Natrix, 

 sp., Coluber, sp., auct. prior. 



