98 REPTILES. 



b. In fluid. Adult. Pale brown varied : three or four superciliary 



scales larger than the others; upper labials 11-11. Trop. 

 America, British Guiana. Presented by Sir Robert Schom- 

 burgk. 



c. In fluid. Adult. Venezuela. From Mr. Dyson's collection. 



Var. 2. Loreal shields 3-3 : occiput with two round dark spots : 

 upper labial plates 10-10. 



d. In spirits. Spot and red scales over the eyes very small, nume- 



rous, like those on crown. America, West Indies. Presented 

 by Edward Cooke, Esq. 

 Corallus Cookii, Gray^ Zool. Misc. 42. 

 €. In spirits of turpentine. Spot red. West Indies. Presented by 

 W. P. Mauger, Esq. 



Var. 3. Loreal shields 4-4, second small ; upper labial shields 

 12-12. 



h. In spirits. Adult. W. Indies, Berbice. Presented by Lady 



Essex. 



Corallus maculatus. Gray., Zool. Misc. 42. 

 i. In spirits. Very young. W. Indies. From the Eev. Lansdown 



Guilding's collection. 



Boa dubia, Guilding, MSS. 

 j. In fluid. Adult ; bleached. Head in bad state. Grenada. 



Presented by W. S. Dallas, Esq. 



Var. 4. Melanea. Black and white varied. 



/. In fluid. Half grown. Spotted like the other of variety 2, but 

 bluish black where others are red. W. Indies. From Mr. Ar- 

 gent's collection. 



g. In spirits. Adult. Bluish black, slightly netted with narrow 

 white lines. St. Vincent's. Presented by the Zoological So- 

 ciety. 



9. Sanzinia. 



Head short, covered with scales, with two internasal and some 

 other symmetrical plates on the end of the muzzle : rostral seven- 

 sided, inequilateral : labial shields very thick, triangular, prismatic 

 on each lip: eyes lateral; pupil elliptical, erect; orbit with an in- 

 complete series of scales below : nostrils lateral, between two inequal 



