EXPLANATION OF PLATE LlXa* 



Icilius jnuictahts, Haswell. 



PI s.l. — Part of first pleon seguient flattened out. 



prp.5. — Fifth peraeopod to midwaj' of fourth joint. 



plp.l. — First pleopod. 



uiy.l, 2, 3, T. — L)orsal view of sixth pleon segment carrying the 

 third pair of uropods and the telson, with the first and 

 second uropods in position, Vjut a little flattened out. 



i 



