ATJSTEALIAN MAIiACOSTBACA. 



307 



528. Paratanais tenuicornis. 



Paratanais tenuicornis, Haswell, 1. c, Vol. vi., p. 194, pi. iv., 

 fig. 3. 



Antennae short; inner pair stout, the basal segment about 

 three times as long as the second, and the latter twice as large 

 as the last, which is very small. Outer antennae more slender 

 than the inner ; last joint smaller than the penultimate, which 

 again is as long as the two preceding taken together. First pair 

 of legs very stout ; prbpodos curved, dactylos slightly geniculate. 

 Caudal appendages short, flagellum with seven articuli. Length 

 about i in. 



Port Stephens. 



G-enus Apseudes, Leach. 

 Body dorso-ventrally compressed. Upper antennae with two 

 flagella ; lower with one. First pair of legs sub-chelate ; second 

 pair laminate at the extremity ; the rest unguiculate. Caudal 

 appendages with a long multi- articulate flagellum and a shorter 

 secondary flagellum. 



529. Apseudes australis. 



Apseudes australis, Haswell, 1. c, Vol. vi., p. 193, pi. iv., fig. 2. 



Head broad ; a triangular acute rostrum between the bases of 

 the antennae, with a mesial and two lateral shallow grooves ; a 

 short spine in the middle of the epistome. Thoracic segments 

 transverse, the epimera large, sparsely setose. Abdomen orna- 

 mented with a few longish, fine hairs ; terminal joint as long 

 as all the rest together, twice as long as broad, rounded at the 

 extremity. First joint of the internal antennae long, compressed, 

 longitudinally grooved ; second joint scarcely one-third of the 

 length of the first; third very small; flagellum as long as 

 peduncle ; secondary flagellum nearly two-thirds of the length 

 of the principal flagellum. Lower (outer) antennae scarcely 

 longer than the flagellum of the upper ; the second joint of the 

 flagellum the largest, a lamellif orm ovate appendage fringed with 

 slender hairs situated at its inner and distal angle ; third joint 

 very small ; fourth nearly as long as the second, but narrower ; 

 last joint smaller than the fourth ; flagellum equal in length to 

 about two-thirds of the peduncle, ornamented with slender hairs. 

 First paii* of thoracic limbs, with the merus, carpus and propodos 



