286 AUSTRALIAN MALACOSTRACA. 



Sub- Family Cirolanince. 

 All the legs with small dactyli. 



Genus Cirolana, Leach. 



Convex, rather narrow, ohlong-ovate. Eyes small, granulated. 

 Internal antennae very short. External antennas long, inserted 

 beneath the others, separated at the base by a narrow process of 

 the epistome. Abdomen rather short, six- jointed. 



492. Cirolana lata. A.M. 



Cirolana lata, Haswell, 1. c., Vol. vi., p. 12, pi. iv., fig. 1. 



Surface finely punctured. Greatest breadth about half the 

 total length. Head received into a depression in the anterior 

 border of the first segment of the thorax. First segment of the 

 thorax as long as the two following segments ; posterior segments 

 all short ; epimera of last four produced backwards to an acute 

 angle. Abdomen much narrower than thorax. Terminal segment 

 triangular, sub-acute. Legs thick and very spinosc. Outer 

 ramus of caudal appendages much narrower than the inner, but 

 of about equal length, sub-acute ; inner slightly sigmoid, sub- 

 acute, armed with a tooth on its inner edge ; basal spine narrow, 

 acute, about half the length of the inner ramus. Length f in. 



Off Broughton Islands, near Port Stephens, dredged in about 

 twenty- five fathoms. 



Family SPHJEROMID^E. 



Body usually oblong-oval, convex. Epimera not distinct. 

 Abdomen 1-2 jointed. Antennae inserted on the front margin 

 of the head. Maxillipedes elongated, 5-G jointed and usually 

 palpiform. Legs usually all with short dactyli, rarely with the 

 dactyli of the two anterior pairs long and curved. Inner ramus 

 of the caudal appendages immobile, or sometimes obsolete. 



Sub-Family Splicerominae. 



None of the legs with long dactyli. External ramus of the 

 caudal appendages capable of being concealed under the internal 

 ramus. 



