ISOPODS OF NORTH AMERICA. 



155 



ments is slightly tuberculate. The terminal segment is perfectly 

 smooth on its dorsal surface, is produced to a narrow extremity, which 

 is rounded, and has the posterior margin crenulate, the crenulations 

 .it the apex taking the form of five teeth. The inner branch of the 



FIG. 135. EXOCORALLANA WARMINGII (AFTER HANSEN). O, LEG OF FIFTH PAIR. 6, LEG OF SEVENTH 



PAIR, c, LEG OF SECOND PAIR, d, HEAD, e, DOBSAL VIEW OF MALE. /, LATERAL VIEW OF MALE. 

 g, POSTERIOR PART OF ABDOMEN. (ENLARGED.) 



uropoda is broad, with the inner angle of the posterior end broadly 

 rounded, the outer angle terminating in an acute tooth; the posterior 

 and exterior margins are slightly crenulate. The outer branch is nar- 

 row, less than half the width of the inner branch, is a little shorter 



