
HALE—AUSTRALIAN CUMACEA 389 
Second peraeopod with exopod (not ineluding setae) as long as basis, which 
is almost three times as long as rest of limb; ischium distinct, not much shorter 
than the abbreviated merus and carpus; propodus a little longer than carpus 
and about two-thirds length of dactylus. 
Third and fourth peraeopods longer than second; merus stout, longer than 
basis and more than twice as long as carpus and propodus together; the most 
distal of the carpal setae is short, claw-like, and much stouter than the other 
setae of this joint and than the propodal seta, whieh reaches well beyond tip of 
dactylus; fifth peraeopod about as long as second, 

Fig. 22, Gynodiastylis ambigna, paratype female; oc. lobe and ant., ocular lobe and first 
antonny (% 56); mxp. and prp,, third maxilliped and first to third peraeopods (% 56; distal 
joints of second leg and varpal seta of third, % 125); urop., ventral aspect of uropod with fifth 
and sixth pleon somites, and telson (X 56); tels. L, lateral view of telson (% 125), A, 'Telson 
of type female (% 125), B, Telson of variety (X 125). 
Pedunele of uropod stout, about as long as telson, with one subdistal spine on 
inner margin ; endopod equal in length to peduncle and twice as long as exopod, 
three-jointed, the first joint as long as second and third together; inner margin 
with four spines on first joint, two on second and two on third, the last subdistal 
and longer and stouter than the others; terminal spine half as long as ramus; 
exopod with three unequal terminal spines, the inner very short, the longest much 
longer than ramus and longer than terminal endopodal spine. 
Jolour white, Length 3-5 mm, 
Loc. New South Wales: Jibbon Station, 70 metres, on sand (type female 
loe,, K. Sheard, A. Trawl Station 9, Aug., 1943) ; 4 miles off Eden, 70 metres, in 
