142 TESTUDINIDZ. 
carapace curved ; anterior marginals much longer than the posterior; 
no nuchal shield; discal shields concentrically grooved ; vertebral 
shields broader than the costals, fifth usually broader than the others. 
Plastron with very thick anterior lip, notched in front and pro- 
jecting beyond the anterior border of the carapace ; the length of the 
thickened anterior lip equals about one fourth of the length of the 
plastron in the female, more in the male; hind lobe of plastron 
very short, truncate, its length about half the width of the bridge ; 
Fig. 41. 
eee ee eae 
Soe: 
Shell of Cinixys erosa. 
the longest median suture is between the abdominal shields, which 
equals twice to thrice that between the pectorals; the smallest 
plastral shields are the anals; inguinal large, axillary small. 
Carapace dark brown, centre of shields lighter ; outer side of costal 
shields yellowish; plastral shields dark brown in the centre, 
yellowish all round. 
Length of shell 23 centim. 
Guinea, Gaboon. 
