Occasional Papers of the MiiseiDu of Zoology 9 



paining this paper. Other characters are found in the tenth 

 segment (compare figures 3 and 4, Plate I, Paper Number 59, 

 loc. cit., with figures i and 2, in this paper). In furcafus the 

 dorsal hooks on abdominal segment 10 are more slender and 

 are directed posteriorly, while in liamatus the hooks are directed 

 interno-posteriorly. In dorsal view the snout-like apex of 10 

 is liroader in fiorafiis than in liaiuatits. 



