1825.] lit. Gray on the Genera of lieptihs, 209 



9. HuRRiA, Daud. 



. Head with nine plates; scale of the body uniform ; plate 

 under the tail entire and divided. 



*Head narrow, indistinct, H. lineata, Daud, Hurriah, RusseL 

 **Head very broad. Ibiba, Gray, I. irregularis. IJurria pseu- 

 doboiga, Daud, 



10. ScYTALE, Gronovius, 



Head with nine plates ; scale of the body uniform ; plates 

 under the tail all entire. 



*Head distinct, blunt. S. coronata, Merrem, *=*'Head indis- 

 tinct. S. anguiformis, Merrem, Anguis scutatus, Laur, 



11. Erpeton, Lacep. Rhinopirus, Merrem, 



Head with large plates, with two soft scaly appendices at the 

 end of the nose; abdomen largely shielded; tail above and 

 below scaly. 



E. tentaculatus; Z/flcep. Rhinopirus. Erpeton, ilferrcTw. 



Fam, V. BoiD^. 



Jaws furnished with teeth, and sometimes fangs ; head scaly, 

 or with a few plates in front ; abdomen and tail covered beneath 

 with narrow short plates ; anus furnished with spurs. 



^Head distinct, Boina. 



1. BoAjXm. Cenchris, Lm. Constrictor, Xcfwr. 



Head distinct, scaly ; mouth and tail above scaly, below 

 broadly shielded ; tail long, round, tapering. 



B. Constrictor, Lin. 



2. Cenchris, Xw/. Boa, jL«?/r. Xyphosoma, Wagler. 

 Head distinct ; shielded over the nose ; trunk and tail above 



scaly, below broadly shielded ; tail round, tapering; body com-* 

 pressed, subfusiform. 



C. murina, Boa Cenchria, Lin, Boa Cenchris, Gmeliru 



3. Python, Daud. 



Head distinct, scaly, or subshielded over the nose ; trunk 

 above scaly, beneath broadly shielded ; tail round, beneath 

 with divided, and sometimes a few entire plates. 



P. tigris, Daud, Coluber Nepa, Laur, C. boaeformis, 

 Shaw, 



Obs. Some of the species of this genus are somewhat allied to 

 Hydrida3. 



^^Ilead indistinct ; body cylindrical ; mouth small, Totricina. 



4. ToRQUATRix, Haw, Tortrix, Oppel. not Lin, 



Head not distinct; from the trunk mouth small ; body above 

 scaly, below covered with small hexangular shields ; tail blunt, 

 round, scales simple and divided; mouth small; tongue short, 

 cut. 



. T, Scytale, (jrray. Anguis Scytale, Lin. A, Corallina, Laur, 

 ^ew Series J vol. x. x* 



