S^fi 



DK. A. GUNTHER ON A NEW TORTOISE. 



[Apr. 4, 



incisions is equal to that between the hinder, and a little more than 

 one half of its length. 



Areolae distinct. Nuchal plate broad, much broader behind than 

 in front, with truncated anterior mari>;in. First vertebral mucli 

 broader than long, concave, with parallel lateral margins ; second, 

 third, and fourth very much broader than long ; posterior margin 

 of the fourth only half as long as anterior ; fifth vertebral hut 

 slightly broader than long, and rather convex behind. Caudal 

 divided. Costals dee])ly impressed in their areolar portion, more so 

 than the veitebrals. Gulars subrhomboid, but rather irregular. 



Fig. 3. 



Geocmyda imprcxsa (side view). 



joined at an obtuse angle in front and behind. Postgulars enlarged 

 at the expense of the pectorals, which are very narrow, the length of 

 their median suture being only one fourth of the suture between the 

 postgulars. Abdominals very large, as long as the preceding three 

 pairs of plates together. Prseanals broader than long. Anals 

 similar in shape to the gulars, but larger, and joined at an acute 

 angle posteriorly. 



The prominent colour is yellow in the areolar portion, but each of 

 the vertebral, costal, and sternal plates is ornamented towards the 

 margin with broad hlack radiating bands, and the antericr half or 

 third of each of the marginals is black. 



