306 AUSTRALIAN MALACOSTEACA. 



head, slender; flagellum rudimentary. Outer antennae nearly 

 twice as long as the inner pair ; the peduncle very stout, the 

 flagellum with seven articuli. First pair of thoracic limbs very 

 thick, with stout, ovate propodos and strong dactylos ; the 

 following pairs all non-subchelate, rather short, decreasing in 

 size posteriorly. Terminal segment rounded at the apex, with 

 three longitudinal dorsal ridges. Colour reddish- purple. Length 



Jin. 



Port Jackson. 



527. Haliophasma maculata. 



Haliopliasma maculata, Haswell, 1. c, p. 477, pi. xviii., fig. 2. 



Head and first segment of the thorax slightly flattened. Inner 

 antenna? as long as the head ; flagellum with about twenty 

 articuli. Outer antennas twice as long as the inner ; flagellum 

 with numerous articulations. First pair of thoracic limbs large 

 similar to those of the preceding species ; following pairs rather 

 long, the first two prehensile. Terminal segment not longitu- 

 dinally ridged. Terminal segment, caudal appendages and caudal 

 scale fringed with long hairs. Colour light yellow, with black 

 blotches. Length f in. 



Port Jackson ; Port Stephens ; Griffiths' Point, Victoria. 



Sub-Tribe Tanaidea. 

 Posterior pair of abdominal appendages more or less styliform, 

 almost terminal, rarely obsolete. 



Family TANAID^. 



First or second pairs of legs sub-chelate, the rest not provided 

 with long curved dactyli. Anterior five pairs of abdominal 

 appendages sub-natatorial, the last pair styliform or biramous. 



Sab-Family Tanaince. 



Body linear, the first segment of the thorax often oblong, and 

 the head small. Caudal stylets long. 



Crenus Pakatanais, Dana. 

 First pair of antenna? not provided with a flagellum. First 

 pair of legs strongly dilated, the rest unguiculate. Caudal stylets 

 biramous, the rami unequal, provided with one or more joints. 



