66 HAND-LIST OF 



b. Animal, half-grown, in spirits. Sternum with fewer large spots. 



Costal shields with an obscure keel above. 

 S. America. British Guiana. Presented by Chevalier Schomburgk. 



c. Animal, in spirits. Sternum with numerous spots; vertebral 



| and costal plates with a brown spot. 

 S. America. Brandt. 56, 2, 6, 8. 



Genus 8*. ACANTHOCHELYS. 



1. Acaxthochelys Spixii, Gray, P. Z. S. 1873. 



a. Animai. in spirits. Adult. 

 Ily.lraspis Spixii, Gray, Cat. p. 84; Suppl. p. 74. 

 Brazils. Clausen. 



Genus 4. SPATULEMYS. 



1. Spatulemys Lasala, Gray, P. Z. S., 1873. 



a. Animal stuffed. 



Spatulemys Lasala, Gray, Ann. d Mag. Nat. Hist. 1872, x. p. 463; 

 P. Z. S. 1872, t. /. Jaws. 

 B. Corrientes. Parana. 



Genus 5. MESOCLEMMYS. 

 1. Mesoclemmys gibba, Gray, Ann. d Mag. Nat. Hist. 1873. 

 a. Animal stuffed, and shell, 6f in. Part of hinder margin 



broken off. 

 Hydraspis gibba, Gray, Cat. p. 55. 

 Mrsoclemmys gibba, Gray, Ann d Mag. N. H. 1873. 

 " Madagascar," Parzudaki. 44, 1, 68, 25. 



Genus 6. PLATEMYS. 

 1. Platemys planiceps, Gray, Cat. p. 54; Suppl. p. 75; Ap- 

 pend, p. 20. 



a. Animal, in spirits ; adult. Lost part of shields. 

 Guiana. 



b. Animal, in spirits ; adult. Lost many of the shields. 

 British Guiana. Schomburgk. 



r. Animal stuffed ; adult. Shell, 6 in. 

 Bio Negro, Brazils. Bates. 51, 4, 2, 7. 



d. Animal and shell, about 2i in. ; in spirits. 

 Surinam. Bartlett. 66, 9, 20, 15. 



e. Animal and shell, about 5-J in. ; in spirits. 

 Demerara. 70, 10, 16, 80. 



/. Skeleton, without part of sternum. 

 Peru, Santa Cruz, Haulhaga. E. Bartlett. 69, 3, 31, 1. 



g. Skeleton and shell, 3t^ in. ; wanting sternum. 

 S. America. 67, 4, 2, 178. 



