
HALE—AUSTRALIAN CUMACEA 405 
dorsally than third, the pleural perts of which are well expanded fore and aft, 
overlapping the second and hinder edge of first in front; second and third lega 
not widely separated. 
Pleon a little shorter than cephalothorax; second to fourth and sixth somites 
each subequal in length to the telson; fifth but little longer, and sixth not wider 
than long; telson plump, suboval in shape, without post-anal portion and with 
apical spines minute, 
First joint of pedunele of first antenna longer than second and third joints 
plus flagellum ; first and second with a distal spine, second and third subequal in 
length ; flagella two-jointed, the accessory as long as first joint of main lash, 





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Fig, 43. Gynodiastylis orrata, types femule and male; lateral views and cephalothorax from 
above (X 25), 
Basis of third maxilliped elongate, half as long again as rest of limb and 
with a long row of stout plumose setae on inner margin and inner distal angle 
acute; remaining joints all subequal in length; ischium and merus each with an 
inner tooth, merus with two projections on inner margin and a small tooth on 
outer, 
First peraeopod with carpus not quite attaining level of apex of pseudo- 
rostrum ; basis almost as long as rest of limb, serrate on inner, outer and distal 
edges and with a row of plumose inner setae; ischium and merus dentate; propodus 
five-sixths as long as carpus, and, as ischium and merus together, with three inner 
subdistal setae, the longest of which is twice as long as the joint; dactylus five-sixths 
as long as propodus, its terminal setae long. 
