SHIELD REPTILES. 33 



I. Skeleton, unmounted. 



Malaclemnays concentrioa, Gray, P. Z. S., 1869, p. 192, f. (skull). 

 N. America. Mus. Utrecht. 67, 4, 2, 155. 



in. Skeleton witliout sternal shield or lower jaw. 

 N. America. Mus. Utrecht. 67, 4, 2, 164. 



n. Shell only, 6 in. Black above. 

 N. America. 67, 5, 2, 312. 



/. SheU only, 6i m. 

 N. America. 



0. Sternum of young sheU. Affixed to a hack of a Pelomedusa. 

 N. America. Mus. Utrecht. 67, 4, 2, 163. 



Var. 4. tubercuhfera. TJie three central vertebral plates with a 

 central tubercle, the hinder tubercle orhicula/r. 



h. Shell only, young. California. 

 Malaolemmys tuherouUfera, Ch-a/y, Cat. Tort. B. M. 

 N. America. Mr. J. Drummond. 



Genus 2. DAMONIA. 



1. Damonia maceocbphala, QroA/, Cat. Suppl. p. 43. 



a. Animal and shell, 4J in. 



Geoclemiays macrocephala, Qray, P. Z. 8. 1859, 470, t. 21. 

 Siam. Mouhot. 59, 7, 8, 4. 



6. Animal and shell, 3f in. 

 Siam. Mouhot. 59, 7, 8, 6. 



h. Animal and shell, stuffed, Si in. Sternum flat. 

 Camboja. Mouhot. 61, 6, 1, 7. 



i. Animal and shell, 2 ia., dry. Very bluntly 3-keeled. Areola 

 large, regularly punctate, with a brown margin above and white 

 margin below. 

 Camboja. Mouhot. 60, 8, 28, 6. 



g. Animal, young in spirit. 

 Cistudo gibbosa, Bleeher, M.S. 63, 12, 4, 38. 

 Borneo. 



h. Animal in spirits. Mus. Utrecht. 



Emys trijuga. Mus. Utrecht. 66, 8, 14, 232. 



a. Animal and shell, 5^ in. stuffed. 



Damonia oblonga, Gray, Ann. and Mag. Nat. Hist. 1871, p. 367. 

 Cat. Append, p. 14. 

 Batavia. 71, 12, 10, 2. 



e. Skeleton and shell, 6f in., very obscurely keeled. 



" Emys Bubtrijuga." Mus. Leyden. 



Emys trijuga skeleton, b. Cat. Sh. Bep. p. 20. 

 Borneo. 48, 10, 31, 16. 



/. Skeleton and shell, 4 in. Back much ended. 

 Siam ? Mus. Utrecht. 67, 4, 2, 148. 



