77 



The posterior portion of the abdomen is somewhat ex- 

 cavated at the origin of the uropods. The posterior margin 

 has a small notch on each side above the median notch. The 

 median notch is deeply cut, widens inwardly, the median 

 process is raised, and does not nearly reach the level of the 

 sides. 



The outer branch of the first maxilla has the outermost 

 distal spines compacted together, thus forming an ap- 

 parent 5-dentate plate: the next spine below this is 3- 

 branched, while between these are slenderer setae. The inner 

 branch has four plumose setae. 



The two outer lobes of the second maxilla are setose and 

 obliquely truncated. 



The legs are robust and spinulate on the usual joints. 

 The spines are usually long, and some are barbed or pectinate. 



The uropods are very granulate to spiniform, especially 

 underneath : the terminal spine on the inner ramus is re- 

 curved, and there are two well-developed spines at its base 

 underneath. The external ramus is much shorter and deeply 

 bifid, with its wider surface presented outwards. 



The sternal filaments are short and stout. 



The mature female has the body loaded with young, and 

 the mouth parts are modified. 



The body is smooth and slightly setose. 



The basal joints of the antennules have a faint slightly- 

 lobed crest, but there are no projecting, rostral, or epistomial 

 teeth. 



The posterior margin of the abdomen is turned up, show- 

 ing a wide shallow insinuation in place of a longitudinal 

 channel. 



The uropods are reduced. 



The marsupial plates overlap. 



In the immature male the body is shorter and broader,, 

 smooth, very sparingly setose. 



The upper angles and sides of the face anterior to the 

 eyes are very distinct. 



The posterior angle of the first thoracic segment seen 

 from below is broadly truncated, the truncation with a slight 

 insinuation. 



The second, third, and fourth thoracic epimera are 

 rather narrowly pointed. 



The posterior margin of the abdomen is arcuate and quite 

 entire, the longitudinal channel shallowing away completely 

 at its exit. 



The uropods are a little roughened on the margins, the 

 inner ramus accuminate and laminate with a slight groove on 

 the inner margin, the outer margin more distinctly grooved 



