SHIELD REPTILES. 87 



Genus 15. CYCLANOSTEUS. 

 1. Cyolanosteus senegalensis, Ohray, Cat. Suppl. p. Ill ; P. Z. S. 

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



c. Ammal stuffed. Dorsal shield, 12 in. 

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



a. Skeleton. Dorsal disk imperfect. 



Cyolanosteus Petersii, Crray, Cat. p. 64. 

 Gambia. Whitfield. Presented by the Earl of Derby. 



6. Shell only, with back margin. 



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

 Gambia. Presented by the Earl of Derby. 



d. SkuU. Length to occiput, 2f in. 



Cyolanosteus, senegalensis. Gray, P. Z. 8. 1864, p. 95, figs. 16 — 18 ; 

 Cat. Suppl. p. Ill, f. 37. 

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



/. SkuU, 2| m. 

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



g. SkuU, 3 ia. 



Sternum, Chray, Cat. Suppl. p. 113, f. 38, 

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



h. SkuU, without lower jaw ; 2| in. 

 W. Africa. 



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

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

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



j. Skeleton imperfect. Dorsal sheU, 8 in. First pair of caUosities 

 round, second moderate. 

 Western Africa. 65, 5, 3, 72. 



Jc. Dorsal and sternal disk. Dorsal disk, 9J in. Second front pair 

 of caUosities very large ; first pair short. 

 Western Africa. 65, 5, 3, 71. 



I. Dorsal and sternal disk. 

 Western ^ica. 65, 5, 3, 74. 



m. Dorsal and sternal disk, and some bones. Dorsal shield, lOJ in. 

 Western Africa. 65, 5, 3, 73. 



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

 caUosities. 



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



sternal caUosities. 

 ^Cyolanosteus senegalensis, var. caUosa, or 

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



1869, p, 215. 

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



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

 W. Africa. Baikie. 63, 10, 14, 6—8. 



