244 Southcrii Cross. 



Hiid, ill common with all, bears distinct epimera. These are very 

 well developed and prolonged backwards in the three posterior 

 segments. 



Abdomen. Four apparent segments are visible, the second of 

 them bearing distinct epimera. The terminal segment is triangular, 

 its extremity being excavated. The uropods arise a short distance 

 from its anterior margin but do not reach the opposite extremity ; 

 they are lanceolate in shape. 



First antenna. A stout peduncle, of which the second joint is 

 about half the size of the first; this is followed by a larger joint 

 which from its character might belong to the flagellum. The 

 flagellum consists of nine additional joints. 



Second antenna. A four-jointed peduncle, of which the joints 

 progressively increase in size, followed by a flagellum of about eight 

 joints. 



Mandible strong, cutting edge very prominent, armed with blunt 

 tubercles and a tuft of strong setae close underneath. Molar 

 expansion well developed. Palp large, of three diminishing joints, 

 the middle one laterally expanded, and the two terminal ones setose, 

 the setae of the middle joint being of peculiar structure. 



First maxilla. Two parallel plates, the outer one the stoutest 

 and provided with five prominent spines at the extremity, the inner 

 one with three plumose setae, the inner margin of both bears a few 

 slender setae. 



Second maxilla. Inner lobe comparatively broad and somewhat 

 pointed, with setae on inner margin and stouter plumose ones at the 

 extremity, the proximal two of this series being larger than the rest. 

 Outer lobe and palp armed at the extremity with a few serrated 

 spines, those of the palp are the longest. 



Maxillipede. The masticatory lobe is produced into a large plate, 

 the free terminal margin is irregular and setose, the five terminal 

 joints form a palp, three of them bear a finger-like process on the 

 inner margin, so that with the terminal joint they occupy approxi- 

 mately the same level despite the natural curvature of the organ ; 

 these processes are all setose. 



Thoracic appendages. The first three slightly increase in size, 

 but the remainder are sub-equal. The first has the last joints short 

 and stout, it terminates in a claw with one, or two, very small 

 accessories. Of the following three, the meros is expanded, the 

 carpus and propos setose. The three posterior limbs are similar and 

 directed backwards. 



Uropods lanceolate, smooth, endopodite the largest. 



