270 ON AUSTRALIAN AMPHIPODA. 



slightly longer, broader, compressed, armed with, a few short 

 seta). Telson sub -triangular, blunt. 



Colour ashy-grey. 



Length eight lines. 



Hal. Port Jackson. 



Amphithoe grandimanus, sp. nov. 



Nearly allied to the preceding ; distinguished by the size and 

 form of the posterior gnathopoda, Which are very much larger 

 than the anterior pair, with the propodos broad, irregularly ovoid ; 

 the palm oblique, deeply excavated, its border waved, defined 

 posteriorly by a strong tooth. 



Length eight lines. 



Uab. Port Jackson. 



Amphithoe setosa, sp. nov. 



Eyes small, round, red. Superior antennae nearly as long as 

 the body ; first two segments of the peduncle sub-equal, third 

 about one-third of the length of the second ; flagellum twice as 

 long as the peduncle. Inferior antennae nearly as long as the 

 superior pair ; ornamented with long hairs ; flagellum as long as 

 the last two segments of the peduncle. Anterior gnathopoda 

 rather large ; meros produced into an acute process at its infero- 

 distal angle ; carpus sub -triangular, longer than the meros or 

 propodos ; propodos ovate ; palm oblique, undefined. Posterior 

 gnathopoda larger than the anterior pair, fringed with long 

 slender hairs ; meros and carpus short, both slightly produced at 

 the infero-distal angle ; propodos more than twice as long as the 

 carpus, rather longer than that of the anterior pair, ovate, swollen ; 

 palm oblique, defined by a small tooth. Colour light brown with 

 minute black dots. 



Sab. Eock-pools at Botany Bay. 



