]. KACnCGA. 



53 



li. Second vertebral shield pointed or 

 produced behind, entering the 

 third ; suture between the gulars 

 at least three fourths the length 

 of that between the liumcrals ; 

 suture between gulars and hume- 

 rals forming a right angle ; suture 

 between humcrals and pectorals 

 straight 3. 



dhongoka, p. 56. 



Fig. 16. 



Shell of Kachiga trivittata. 



II. Fourth vertebral shield pointed in front, narrowly in contact 

 with the third, embracing five neural plates. 



A. Third vertebral quadrangular, 

 much longer than broad, posterior 

 border straight or slightly convex ; 

 second vertebral shield embracing 

 two neural plates ; neural plates 

 much longer than broad 4. smithii, p. 57. 



p2 



