
HALE—AUSTRALIAN CUMACEA 483 

Third maxilliped slender, elongate, the propodus reaching quite to antennal 
angle; unarmed but with the usual setae; basis barely equal in leugth to remaining 
joints together; carpus, propodus and dactylns equal in length, each almost as 
long as ischium and merus together 
First peraeopod short, the carpus not reaching level of apex of rostrum; basis 
subequal in length to rest of limb; earpus elongate, two-thirds as lang as basis 
and three times as long as the short propodus, which is furnished with a fan of nine 
ov ten long setae; dactylus very short, less than half length of propodos, with a pair 
of lone distal setae. 
Second peraeonod with the stout basis nol much longer than remaining Joints 
together; ischium distinet, rélatively large; carpus more than half as long again 
as mevus; propodnue and dactylus subequal in length, each not wiyeh more than one- 
third as long as carpus; terininal daetylar setae short, one stout. 
Third to fifth peracopods all approximately same size; the broad merus is 
about twice as lone as carpus and propodns together; dactylus short, stout and 
blint. 
Pedunele of uropod as long as sixth pleon somite, two and one-half times as 
long as wide, with a short inner spine near distal end; endopod a little longer than 
yedunele; three-jointed, the first seement fully as lone as seecnid and third joints 
torether and with three inner spines; the Jast two each have one inner spine, that 
of third subdistal ; terminal spine as long as first joi ; exopod stout and short, only 
as long as first joint of endopod, and with the longer of its two terminal spines as 
long as the ramus. 
Colour white, Length 4:7 mm, 
Loc. New South Wales: Botany Bay, off Kurnell, 20 feet (W. Vairbridge, 
Aug,, 1943). Type in South Australian Museum, Ree, No, C, 2669, 
Several females with eggs or embryos in the narsupium, 
GYNODIASTYLIS TRUNCATIPRONS Hale, 
Gynadiastylis truncatifrons Hale, 1928, p. 45, fig. 13-14 and 1937, p. 65. 
Ovigerous female. Re-examination of the type shows that in that example the 
uropods have been mutilated during life; normally the endopod in the female is 
folly as long as the pedunele and is three, not two-jointed, with the first joint 
longer than second, which is barely longer than third; the longest terminal spine is 
fully three-fourths as long as the ramus and the joint bears respectively three, two 
and two shorf inner spines; exopad as long as the two proximal joints of endopod. 
The antero-lateral angle is emphasized by a slender spine, posterior to which 
the inferior margin bears a row of similar teeth. 
An ovigerous female from Sellick’s Reef, South Australia, is only 3-7 mm. in 
length, only half as long as the type. 
A rather extreme range in size of ovigerous females associated in the same 
situation is found also in sanilis Ammer 
Adult male. An adult male from Memory Cove, South Australia, is nearly 
5 mm, in length; exopods are well developed on the first four pairs of peraeopods. 
Some examples about $°2 mun, in len¢th are available from New Sonth Wales 
(4 miles off Eden, 70 metres, IK. Sheard, Oct., 1945) ; one of these is here illustrated. 
The antennal spine, and the spines posterior to it are shorter than in the females 
and the antero-lateral portion of the carapace is denticulate above the curved 
lateral groove, The telson bearsa pair of apieal spines, flanked by a similar spine 
on each side, all being relatively larger than im the female. 
The first antenna has the first Joint of peduncle longer than second and third 
together, and second shorter than third ; the slender three-jointed accessory fagel- 
