TORTOISES. O 



.Specimens in British Museum. a. Adult, 8^ inches. N. Ame- 

 rica. Presented by Richard Harlan, M.D. 



b. Adult, 10| inches. N. America. Presented by Edward Dou- 

 bleday, Esq, 



The Brazilian Tortoise. Testudo tabulata, Walb. Ch. 70, 

 t. 22. Baud. Kept. i. 242. Gray, Syn. 10. Bell, Test. t. 1, 2. 

 Wagler, Syn.f. 45, 48. Neuw. Abbild. t. . Dum. $• Bib. Erp. 

 Gen. ii. 89. T Hercules, Spix, Braz. t. 14. Gray, Syn. 9. T. 

 Boiei, Wagler, Amp. t. 6,f. 7, 8. Icones, I. 13. T. denticulata, 

 Schoepf. t. 28, /. 1. T. carbonaria, Spix, t. 10. Bell, Test. t. 1,2. 

 Dum. $• Bib. E. G. ii. 99. T. tessellata, Schn. Schoepf. t. 12, /. 

 2. t. 13. Neuw. Abbild. t. . T. Cagado, Spix, Braz. t. 17. T. 

 sculpta, Spix, Braz. t. 18. T. Graca, Herm. Obs. Zool. T. ero- 

 sa, and T. gigantea, Schweiy. ? T. foveolata, Licht. Berl. Acad. 

 1820, 251. Sphargis Mercurialis, Schinz. t. 8,/. 1. 



Shell subquadrate, oblong, depressed, sides contracted when 

 adult ; shields black, grooved, areola small, nuchal plate none ; 

 animal red or yellow, spotted. 



Var. 1. Large, shell contracted on the sides, sternum roundly lobed 

 behind. T. Hercules, Spix. 



a. c. and/. Adult, ll£ inches. Shell only. Sternum rather con- 



cave. S. America. 



b. d. and/. Adult, 12^ inches. Sternum very concave. S.America. 



Var. 2. Smaller (young?), shell oblong, sternum acutely lobed be- 

 hind. T. tabulata, Walb. 



a. Adult, 1 1 inches. Sternum very concave. Trop. America. 



b. Adult, 9 inches. Sternum flat. Trop. America. 



c. Adult skeleton 10 inches. Sternum flat. Trop. America. 



d. Young, in spirits. Gular plates truncated, not produced, mar- 



ginal plates denticulate; shields brown, areola yellowish. 



Var. 3. The last vertebral nearly as broad as the caudal and half 

 of each of the hinder marginal shields. 



/. Half-grown animal and shell. West Indies. Presented by J. 

 Gould, Esq. 



B. The last vertebral generally only as wide as the caudal and half 

 of each of the hinder marginal shields. Confined to the Old 

 World. 



The Indian Tortoise. Testudo Indica, Gmelin, S. N. Gray, 

 Syn. 9. Cat. Zool. Soc. 40, fig. 9. Chersina retusa, Merrem. T. 

 Elephantopus, Harlan, J. Acad. Phil. iii. 284, t. 9. T. nigra, 

 Quoy, Voy. Uran. t. 40. Dum. et Bib. E. Gen. ii. 115. T. Ca- 

 lifornica, Quoy. T. Dussumieri, Schlegel, Mus. Leyd. i. Pet. 



b3 



