EXPI,ANATION OF PLATE XXV. 



Fig I. — G. jenkinsonianum, sp. nov. X i-|. 



,, 2. — G. uaganensis, sp. nov. Nat. size. 



,, 2a. — G. na^'Tnensis, sp. nov. Ventral view from tip of 

 snout to base of anal lin. X r^. 



,, 3. — G. chniiih'Ui'ii, sp. nov. X2. 



