
HALE—AUSTRALIAN CUMACEA 373 
a pair of rather long terminal spines, flanked on the left by a lateral spine, on 
the right side by two spines. 
First antenna relatively small and robust ; first peduncular joint a little longer 
than second and third combined, the last little longer than second; flagellum four- 
segmentate and quite as Jong as peduneular joint; accessory flagellum fully 
half as long as main lash, composed of four joints, the last of which is minute. 
Second antenna with the eleven-segmentate flagellum barely longer than peduncle. 
Mandible with nine or ten spines in the row. 
Third maxilliped with basis only about one-tenth longer than rest of limb, 

Fig. 10. Gynodiasiylia dilatata, type male; ant., first and second antennae with upper lip; 
mxp. and prp., third maxilliped and first to third peraeopoda; urop,, uropod and fifth and sixth 
pleon somites, and telson (all X 56); tels., telson ( 125). 
First peraeopod long, the carpus reaching beyond level of apex of pseudo- 
rostrum ; basis less than two-thirds as long as rest of limb; carpus elongate, about 
three-fourths as long as basis, and twice as long as propodus, which is more than 
twice as long as dactylus; the propodus has, in dilated distal third, a series of long 
sane which, like terminal seta of dactylus, are almost half the total length of the 
imb. 
Second peraeopod with exopod as long as the stout basis, which is approxi- 
mately two-thirds the length of rest of limb; ischium relatively large; carpus 
elongate, and distinctly more than twice as long as propodus, which is five-sixths 
as long as the slender daetylus, 
