SHIELD REPTILES. 83 



h. Animal, in spirits ; about 4 in. Skull extracted, " i." 

 Trionyx frenatuSj "a," Orwy, Cat. p. 67. 

 Grymnopus javanicus, Bibron, MS. in Zool. Soc. 

 N. America. 52, 9, 13, 46. 



Var. or deformity. The dorsal bones very convex. Dorsal ribs 

 nearly half free. 



f. Animal and shell, 6| in. ^ . 

 N. America. Smith. 54, 7, 1, 1. 



k. Dorsal disk, 12 in. Like former ; much larger, and ribs more 

 ossified. " 

 N. America. 69, 3, 6, 1. 



Genus 9. CALLINIA. 



1. Callinia spinifeea, Gray, Cat. Suppl. p. 109. 



a. Animal stuffed. Dorsal disk, 10| in. Shell, 9 in. 

 Trionyx Argus, Gra/y, Cat. p. 68. 



CaUinia spinifera, Crray, Cat. Svppl. p. 109. 

 N. America, " Sierra Leone." 43, 9, 6, 12. 



Presented by the Earl of Derby. 



6. Animal, in spirits ; bleached. Dorsal disk, about 9i in. 

 " Aspidoneotes spinifer." 

 Trionyx ferox, " c," Gray, Cat. p. 68. 

 N. America. 



d. Animal, in spirits. Dorsal disk, about 6 in., with many small 



spots. 

 Trionyx ferox, " d," GroAj, Cat. p. 68. 

 N. America. Parzudaki. 59, 9, 20, 26. 



e. Animal, in spirits ; uniformly coloured. Skull extracted. 

 N. America. Wabock. 61, 5, 21, 24. 



b. Skull, If in., of " e." 



C. spinifera, P. Z. S. 1873. 

 N. America. Wabock. 61, 5, 21, 74. 



/. Animal, in spirits ; yoimg. 

 N. America. 59, 8, 17, 2. 



2. Callinlj^ miceooephala, Gray, Cat. Suppl. p. 108. 



a. Shell stuffed. Dorsal disk, 7 in. Shell, 4J in. Eibs produced. 

 Sarawak. WaUace. 66, 9, 19, 22. 



6. Skull, li in. From specimen " a." 



C. microcephala, Gray, P. Z. S. 1873, f. 

 Sarawak. 56, 9, 19, 22. 



