EXPLANATION OF PLATE LIX a.* 

 IcU.ius dance, Stebbing, 



Per. 8.7, PI.s.l, ri.s.2. — Parts of seventh peiaeon segment and 



first two pleon segments, flattened out, 

 prp.5. — Fit'ih peraeopod to end of fourth joint. 

 plp.l. — First pleopod. 

 urp.l, 2, o, T, — First and second uropods, and dorsal view of 



sixth pleon segment carrying the third pair of uropods, 



without inner branch, and the telson, of which the apex is 



more highly magnified. 



