338 ON SOME NEW GENERA AND SPECIES OF AMPHirOlU, 



flagellimi as long as the peduncle. Propodos of anterior 

 gnatliopoda sub-quadrate, a little broader distally tlian proximally, 

 palm nearly transverse, not denned. Posterior gnatliopoda with, 

 the meros and carpus both produced into a small tooth at their 

 inferior and distal angle ; propodos large, sub-quadrate, twice 

 as long as broad, palm nearly transverse, concave. Posterior 

 pleopoda reaching beyond the extremity of the preceding pair, 

 the outer ramus armed with three hooks, the inner foliaceous, 

 armed with slender straight spines, Telson armed with about 

 half-a-dozen slender spines. Length J in. 



Ilab. Clark Island, Port Jackson. 



Genus Podocerus, Leach. 



Podocerus australis, sp. nor. (PI. XXL, fig. 8.) 



Eyes small, round. Superior antenna) nearly as long as the 

 cephalon and first four segments of the pereion, armed below with 

 long hairs ; nagellum subequal with the last segment of the 

 peduncle, obscurely multiarticulate. Inferior antennae longer 

 than the superior pair, very stout ; flagellum much shorter than 

 the last segment of the peduncle, obscurely multiarticulate, 

 secondary appendage uni-articulate. Anterior gnatliopoda small, 

 the propodos ovate, the palm undefined. Posterior gnatliopoda 

 very large, carpus produced at its inferior and distal angle into a 

 long, curved, compressed, pointed process, which nearly equals 

 the propodos in length ; propodos large, thrice as long as broad, 

 convex dorsally, concave ventrally, the distal extremity armed 

 with an acute tooth near the insertion of the dactjdos ; dactylos 

 about two-thirds of the length of the propodos. Three anterior 

 pairs of pereiopoda very short ; two posterior pairs much longer^ 

 Length l/5th in. 



Hob. Port Jackson. 



