

162 Recorps or THE S.A, Museum 
foc. South Australia: St. Vineent Gull, Sellick’s Reef, 1 fath., an stones 
(TH, M, Wale, Jan. and Apl, 1936) and off Brighton jetty (Miss P. Mawson, Miss 
LM. Angel and K, Sheard, submarine light, Oct., 1941) and Rapid Bay, 4 fath., 
oo mad (A, M, Cooper and A, Ran, Jan., 1944) ; Pondalowie Bay (K. Sheard, 
tow-nel, Mar, 1988)  Kanoaroo Tsland, Antechamber Bay (KK. Sheard, submarine 
light, Dee, 1939); Spenoor Git, Corney Point (K, Sheard, Meb., 1941) and 
Port Lincoln and Memory Cove, 3 fath, (type loc, K. Sheard, submarine light, 
Peb. 1944), Qneensland : Moreton Bay. Myora Bight, surface (ovigerous fenule, 
1 SR, Munro, Station 42, 50 em, 40m, net, 7 p.m., Nov. 29, 1940 and males from 
other stations m the Bay, Noy.-Dee., 1940), Types in South Anstralian Mnseum, 
Reg, No, 0, 2577-2578, 
This appears to be the commonest Niwnastacus of the South Australian voast. 
Ovigerous females and jnveniles were previously referred to qibbosus by the 
writer, Calman’s species is deseribed from the adult female only and this is sepa. 
rated trom thai of dnflalns by having (1) the psendorostral lobes meeting below: 
(2) the third joint of pedunele of first antenna longer than the second: (4) the 
exopod of the nroped, with its spine, relatively longer, while the endopod has ‘five 
smull spines on its inner edge.’' Also, Calman does not fignre the two dorsal 
tubercles at hinder margin of the fifth pleon somite but the non-artienlated spines 
of the integument show sonie variation in dnflatus. 
The adult males of tnflatus are of two sizes, approximately 2+1 mm. and 2-2 
min. in tleneth. The larger males were regarded wt supra as stiimer’ Calman but 
the male of the last-named differs (1) in the smaller size, 1-6 mm.; (2) the pseu- 
dorostral lobes are not widely open above; (3) the carpus of the fifth peraeoped 
is half as long again as the propodus; (4) the exopod of the uropod with its spine 
is longer, reaching beyond middle of length of endopnd. 
N. inflatus also has affinities with the smaller sawlert Zimmer (1921, p. 135. 
fig. 30-87) hut is separated hy the characters given in the keys. 
The single female from Queensland is 2-1 mm, in length but the largest of the 
males taken by Mr. Munro measure over 2-5 inm.; these males have the uropods 
and other appendages as in the southern specimens but the furrows hefween the 
timidities of the eavapace are less pronounced, a fentrre possibly produced by four 
veurs of immersion in formalin, 
NANNASTACUS SUBINPLATTS Sp. NOV. 
Nannastacus zimmeri Hale (partl., nec Calman) 1936, p. 432. 
Ovigerous female. Integument with eranules as in inflatus and with sparse, 
rather lone hairs. 
Carapace large. fully two-fifths of total length; it is widest across the brau 
chial regions, where the breadih is considerably @reater than its depth oud is 
equal to four-fifths its length ; although each branchial region is inflated there is no 
deep furrow between the swellings as in dnflatus, nor, viewed from above, is there 4 
inarked constriction anterior to them; posteriorly is 4 median tumidity, nat pra 
minen{ as seen Fron the side, and having at its hinder end a pair of tubereles 
larger than the general granules. Antero-lateral margin deeply coneave and angle 
produced, tooth like, Pseudorostral lobes as in drflatus but a little shorter: not 
metctine above or below. 
Pleural parts and lower part of sides of first pedigerous somite exposed ; dar- 
sal trmidity of fifth with a pair of toothtike tubercles, which stam] ot sumengst 
the smaller granules; first to third somites as wide as carapace, the plevral parts 
heing considerably expanded but vot backwardly produced, 
First und second pleon somites with dorsum sliehtly elevated, each with a 
pait of vente tihereles as on last pedigerows somite; fifth distinctly longer than 
