SHIELD REPTILES. . 87 



Genus 15. CYCLANOSTEUS. 



1. Cyclanosteus senegalensis, Gray, Cat. Suppl. p. Ill ; P. Z. S. 

 1870, p. 717, t. 43 (life). Emyda sengalensis, Gray, Cat. p. 64. 



c. Animal stuffed. Dorsal shield, 12 in. 

 W. Africa. Baikie. 64, 8, 8, 10. 



a. Skeleton. Dorsal disk imperfect. 

 Cyclanosteus Petersii, Gray, Cat. p. 64. 



Gambia. Whitfield. Presented by the Earl of Derby. 



b. Shell only, with back margin. 

 Cyclanosteus Petersii, Gray, Cat. p. 64, t. 29. 



' Gambia. Presented by the Earl of Derby. 



d. Skull. Length to occiput, 2J in. 



Cyclanosteus senegalensis, Gray, P. Z. S. 1864, p. 95, figs. 16 — 18 ; 

 Cat. Buppl. p. Ill, f. 37. 

 W. Africa. Baikie. 65, 5, 9, 19. 



/. Skull, 2| in. 

 W. Africa. Baikie. 65, 5, 9, 20. 



g. Skull, 3 in. 



Sternum, Gray, Cat. Sujrpl. p. 113, f. 38. 

 W. Africa. Baikie. 65, 5, 9, 21. 



h. Skull, without lower jaw ; 2f in. 

 W. Africa. 



i. Skeleton mounted. Dorsal disk, 9^ in. 

 C. Petersii, Gray, Cat. p. 64. 

 W. Africa. Baikie. 63, 11, 9, 6. 



j. Skeleton imperfect. Dorsal shell, 8 in. First pair of callosities 

 round, second moderate. 

 Western Africa. 65, 5, 3, 72. 



k. Doi-sal and sternal disk. Dorsal disk, 9h in. Second front pair 

 of callosities very large ; first pair short. 

 Western Africa. 65, 5, 3, 71. 



I. Dorsal and sternal disk. 

 Western Africa. 65, 5, 3, 74. 



?n. Dorsal and sternal disk, and some bones. Dorsal shield, lOf in. 

 Western Africa. 65, 5, 3, 73. 



The latter four all vary in the shape and size of the front sternal 



callosities. 

 n. Dorsal and ventral shields. Dorsal shield, 11 in., with additional 



sternal callosities. 

 Cyclanosteus senegalensis, var. callosa, or 

 Baikiea elegans? Gray, Cat. Sh. Sep. Svppl. p. 113, f. 38. P.Z.S; 



1869, p, 215. 

 W. Africa. Baikie. 65, 5, 3, 75. 



o, p, q. Three animals, in spirits ; young. Different sizes. 

 W. Africa. Baikie. 63, 10, 14, 6—8. 



