
HALE—AUSTRALIAN CUMACEA 155 
Basis of first (luree pairs of peraeopods with comb of lamellate spines. 
First peracopod with basis more than two-thirds as long as rest of limb; pro- 
podus subequal in length to carpus (not longer (han it) and distinetly less than 
twice as long as dactylus. 
Second peraeopod two-thirds as long as first; basis half as long again as rest 
of limb; carpus half as long again as merus and a little longer than propodus and 
dactylus together. 
Carpus of filth peraeopod less than one and one-fourth times propodus. 
Pedunele of uropod about five-sixths as long ax telaoni¢ somite and much 
more than one-third as long as endopod exclusive of its terminal spine; exopod 
less than one-tenth as long as endopod and with its terminal spine not reaching 
to middle of length of latter; endopod with six short spines on inner margin and 
with distal spine only one-fourth as long as its ramus. 

Pig. 6, Nannastacus asper, type male; lateral view and cephalothorax from above (X 8?) ; 
auleroJateral angle of carapnee (% 72). 
Colour, yellowish white, with a dark marking hetween eyes and a conspicuous 
blackish band across anterior part of sides of carapace, but not including pseudo- 
rostrum and not extending quite to antero-lateral margin, leaving a whitish edg- 
ing, Fifth pleou somite with a dark band on anterior balf, 
Length 2:3 mm. 
Loc. South Australia: St. Vineent Gulf, Sellick’s Reef, ete.; Spencer Gull, 
Western Shoal (CK. Sheard, tow-net, Feb., 1938), and Memory Cove, 5 fath, (type 
loc., K. Sheard, submarine light, Feb,, 1944), ete. Tasmania: Cape Barren Island 
(D. L. Serventy, tow-net, Nov., 1999). Type in South Australian Musenm, Reg. 
No, ©, 2573. 
The dark colour markings are characteristic but in a few examples are rather 
taint and the bloteh between the eyes is almost or quite absent. The spiny arma- 
jure-ia 9 little more prominent in some examples than in others. 
wo males of this species were previously referred to Calman’s hansen (1905, 
p. 11, fig. 1) with which they agree in having the paeudorostral lobes divergent. 
both above and below, in having the back of the pleon prominently spiny, ete. After 
examination of many more males (no females have been taken as yet) the Sonthern 
Australian species is separated because hanseni differs from it in the following par- 
ticularg (1) the carapace is covered with rounded, not spiniform, tubercles, its 
median hinder tumidity is bilobed, and its antero-lateral angle is not produced as 
