( 187 ) 



Carapace of the female, 2.5i in. loiif/. 



The bony structure of the earapace is imicli less solid than in tlie male ; it is 

 thin and brittle, and hence cracked in several places. As regards .general form, it 

 is rounder and broader ; yet the saddle-shaped coinin-ession of the fore part is 

 distinctly indicated, the first costal scute beini;- concave. The anterior and i)osterior 

 margins are less reverted tlian in the male, and bnt little scalloped ; es])ecially the 

 marginal scutes above the hiud-legs are only gently arched outwards. The areolar 

 humps of the dorsal scutes, wliich render the median dorsal profile so strongly 

 undulated in the male, are entirely absent in this female, tlie back of which is 

 much Hatteued. The scutes themselves, at least those which have been preserved, 

 are smooth, not striated, of a dark horn-colonr with yellowish mottling. 



The sternum (PI. XVII. Fig. b) is slightly and evenly impressed over the 

 whole of its middle surface, the substance of the anals and lateral portions of the 

 abdominals being very little thickened ; the sternum is truncated in front, and 

 excised behind. Viewed from the ventral side, the upper part of the carapace 

 projects very distinctly beyond the front end of the sternum, or, in other words, 

 the sternum is not so much produced in front, as in the male. This as well as 

 the other points mentioned are e.xactly the characters iu which the sexes are known 

 to differ in these tortoises. 



S/iidl 0/ male.*— The skull (PI. XVIII and PI. XIX, Fig. a) much resembles 

 that of 7'. mkrophijes, T. ejiliippium, and T. abingdomi, while it dift'ers from the 

 first by a distinctly shorter snout, the configuration of the palate safiiciently indicates 

 the racial distinctness from the two last. It is comparatively larger than that of 

 T. epiuppiiim,] measuring 5 iu. from the front margin of the intermaxillary to 

 the occipital condyles, and 4 in. in its widest part between the zygomatic arches. 

 Mosr of the sutures between the bones can be more or less clearly traced, bnt 

 others are obliterated, so that this individual seems to have reached the limit of 

 its growth. 



* Is very well preserved, but the occipital oiiilyle and the left mastoid .ire lost ; tlie extremity of the 

 occipital crest is slightly damageil. 



t'The following notes are m.T(le nitli speci.tl references to the description of the skull of T. ejihijtjiiiim 

 in Gigant. Land Tortois., p. 82. 



