
154 RECORDS OF THE 5,.A. MUSEUM 
Propodus of third maxilliped distinetly longer than carpus and nearly twice 
as long as dactylus. 
First peraeopod with basis less than two-thirds as long as rest of limb; pro- 
podus shorter than carpus, and almost twice as long as dactylus; the ischiuvin hae 
a strong spine on ouler margin. 
Second peraeopod two-thirds as long as first; basis less than half as long 
again as rest of limb; ischium indistinctly marked off; carpus only as long as 
dactylus, which is less than twice as long as propodus, 
Carpus of fitth peraeopod nearly half as long again as propodus. 
Pedunele of uropod a little longer than telsonic somite and uot much shorter 
than endopod exclusive of its terminal spine; it is serrate on both edges; exopod 
slightly more than half as long as endopod and with its terminal spine reaching 
heyond distal end of latter; endopod with five spines on inner margin (ineluding 
sib-distal one), which successively increase in length baekwards, and with dis- 
tal spine stout, distinctly more than half as long as its ramus and almost as long 
ax the more slender spine of the exopod. 
Colour yellowish-white. 
Length 1-9 mm. 
Loc, South Australia: Backstairs Passage, Page Islands, 9 fath. (K, Sheard, 
submarine light, ApL, 1941). Type male in South Australian Musenm, Reg, No, 
©. 2604, 
The situation in which this species was taken is rough, the islands being almost 
uicessantly pounded by heavy scas, rendering collecting difficult excepting under 
unusually favourable circumstances. 
NANNASTACUS ASPER sp. nov. 
Nennastacus hansem Hale (nee Calman), 1936, p. 431, 
Adult male, Integument of back and sides with spiniform tubereles, becom- 
ing sparser on télsonic somite. 
Garapace barely more than one-third of total length of animal, depressed, a 
little Jess fhan twice as long as deep, and twice as long ag the pedigerous somites 
together; antero-lateral and branchial regions swollen and a posterior median 
tumidity; spiny armature conspicuous and close-set but no outstanding larger 
spines. Antero-lateral margin deeply and rather augularly concave; antero-lateral 
angle produced to form an acute spine, aud lower border of carapace posterior to 
it margined with spinules. Pseudorosiral lobes subtriangular, separated both above 
and below, distally acute when viewed from above and from the side rounded. 
First pedigerons somite not visible behind carapace; second and third somites 
each with a pair ot prominent spines on back; fourth with no large dorsal spines 
and fifth with a pair of low, stout elevations, each capped with a large and some 
smaller spines; pleural parts expanded and backwardly produced, spinose like 
sides, 
Hirat three pleon somites with paired dorsal elevations and spines as on last 
pedigerous somite ; buck of fourth less raised but with one pair of spines more pro- 
minent than the others; fifth distinetly longer than any of the others and about 
half as long again as wide, with no elevations on buck but with one pair of spines 
at. hinder end somewhat lonver than the others; Lelsouie somite fully as wide as 
long, broadest behind middle of length, produced posteriorly and angularly 
rounded, 
Third joint of pecunele of first antenna subequal in length to second and half 
us long as first, 
Propodus of third maxilliped louger than earpis, 
