656 DR. J. E. GRAY ON NEW TORTOISES. [June 23, 
4, PELTASTES TENTORIUS. 
The back of the shell black, with twelve or more narrow rays; 
underside white, with a large brown spot occupying the middle of 
the whole length of the sternum ; underside of anterior and lateral 
marginal plates white, with a black anterior ray ; posterior marginal 
shields all white; nuchal plate very small. 
Testudo tentoria, Bell, Zool. Journ. iii. p. 420, t. xxiii. & xxiv. ; 
Testud. t. 
T. geometrica nigriventris, Gray, Cat. Sh. Rep. p. 8. 
Hab. South Africa. 
5. PELTASTES VERREAUXII, 
Shell depressed, chestnut-brown, broader and slightly dentated 
behind ; dorsal shields with narrow black-edged radiating streaks ; 
areola small, black, and pale-varied; sternum brown, especially 
in the middle of its length; sternal shields with diverging pale rays, 
especially on the margin; nuchal shield small. 
Testudo verroxii, Gray, Cat. Sh. Rep. p. 8. 
Hab. South Africa. 
6. PELTASTES SEMISERRATUS. 
Thorax oblong, the hinder margin more or less serrated ; dorsal 
shields black, deeply concentrically grooved ; areola pale, large, sub- 
central, with a pale-brown broad radiating band, which sometimes 
becomes very wide, and often divides into two near the margin of 
the plates; the central ray of the vertebral and costal plates forms 
an uninterrupted streak on the back and sides ; the marginal shields 
with one or two broad pale rays; the sternum white, with a few very 
broad black rays ; nuchal plate elongate, triangular. 
Young. Hinder edge very acutely serrated. 
Var. Back depressed. 
Testudo semiserrata, Gray, Cat. Sh. Rep. p. 9. 
Hab. South Africa. 
*kEE Dorsal shields horn-coloured, black-varied ; nuchal plate 
distinct. 
7. PELTASTES ELONGATUS. 
This Tortoise is very variable in colour; some older shells are 
nearly uniform in colour, some others are nearly black, with a more 
or less pale edge to the dorsal and ventral shields; others are pale 
whitish, with a more or less broad black ring round the areola. 
Testudo elongata, Gray, P. Z. 8. 1856, p. 181, t. 9, and 1861, 
p- 139; Ann. & Mag. Nat. Hist. 1861, p. 218; Giinther, Rep. 
Brit. India, p. 8; Blyth, Journ. As. Soc. vol. xxii. p. 639, xxiv. 
pp- 7-12, xxv. p. 448, xl. p. 75; Theobald, Journ. Linn. Soe. Zool. 
vol. x. p. 6, 1868. 
Hab. India. 
