244 Soiithcni Cross. 



ami, ill tniniiitiii wiili all, bears (listiiift uiiiinera. Tliese are very 

 well ilevelopecl and i»roloiige(l backwards in tlic tliree posterior 

 .segments. 



Al)doinen. Four a]>parent segments are visible, the second of 

 them bearing di.stinct epimera. The terminal segment is triangular, 

 its extremity being excavated. The uropods arise a short distance 

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

 they are lanceolate in sha}»e. 



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

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

 which from its character might belong to the flagellum. The 

 tiagellum consists of nine additional joints. 



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

 progressively increase in si;cc, 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 ex])anded, and the two terminal ones setose, 

 the setae of the middle joint being of peculiar structure. 



First maxilla. Two parallel plates, the outer c»ne the stoutest 

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

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

 slender setae. 



Second maxilla. Innei' 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. 

 (Juter 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 desi»ite the natural curvature of the organ ; 

 these processes are all setose. 



Thoracic apjjeiulages. The first tliree slightly increase in size, 

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

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

 acce.s.sories. Of the following three, the meros is exjianded, the 

 carpus and ]>iopus setose. Tbc three jjosterior lindjs are similar and 

 < li rected l)ack wards. 



Uropods lanceolate, .smooth, entlopoilite the largest. 



