AUSTBAIiIABT MA£A0OSTEACA. 269 



Inferior antennae with the peduncle longer than that of the 

 superior pair ; fourth segment the longest ; flagellum shorter 

 than the last segment of the peduncle, of nine articuli, each armed 

 with one or two curved spines and a few hairs. Maxillipedes 

 non-unguiculate ; the borders of the ischial scale and of the palp 

 armed with a close fringe of long hairs. Anterior gnathopoda 

 sub-pediform, stout ; carpus triangular, short ; propodos nearly 

 twice as long as the carpus, narrow, its superior border slightly 

 convex, its inferior straight ; dactylos terminal, large, its inner 

 border armed with a series of sharp denticles. Posterior gnatho- 

 poda with the ischium sub-triangular, articulating with both 

 meros and carpus ; the latter broad, squamiform, with a close 

 fringe of long hairs ; the former narrow ; propodos narrow, sub- 

 equal with that of the anterior gnathopoda ; dactylos very 

 short. Pourth and fifth pairs of pleopoda armed with a 

 few acute spines. Posterior pleopoda with the rami narrow, 

 bordered with a few setiferous serrations and armed terminally 

 with a small number of slender hairs. Telson scale-like, very 

 short. Length 3-| lines. 



Port Jackson; Port Stephens; Griffiths' Point (Victoria). 



G-enus Haplocheiba, Haswell. 



Body not much compressed laterally. Upper and lower antennae 

 subequal ; superior pair without an appendage ; inferior sub- 

 pediform. Both pairs of gnathopoda simple, fringed with long 

 hairs. Posterior pleopoda biramous, with unequal rami. Telson 

 single ? 



470. Haplocheira typica. 



Haplocheira typica, Haswell, 1. c, p. 273, pi. xi., fig. 2. 



Superior antennas as long as the cephalon and first three seg- 

 ments of the pereion ; first and seeond segments of the peduncle 

 of nearly equal length, first stouter than second ; third half as 

 long as the latter ; flagellum as long as the last two segments of 

 the peduncle, hairy. Inferior antennas subequal with the superior 

 pair ; peduncle armed with a few hairs, longer than that of the 

 superior pair, fourth and fifth joints subequal ; flagellum shorter 

 than the last segment of the peduncle, composed of four articuli, 

 each armed with pointed, slightly hooked spines and a few short 



