
HaLte—AUSTRALIAN CUMAGEA 109 
shallow grooye runs back and down; the short faint ridge leading back from the 
apex of the antennal tooth accentnates its acute appearance. Pseudorostral lobes 
reaehing qiute to apex of ocular lobe but not meeting in advanee of il, 
The pedunele of the uropod is relatively short, as in the female, but its 
pedanele bears plumose setae; the inuer margin of the endopod is armed with 
four or five spines and in some specimens these are preceded by about half a 
dozen or less slender serrate spines (or setae); in others these proximal spines 
are entirely absent as in the female (fie. 31, ©). 
Basis of seconcl peracopods as long as rest of limb; merus longer than carpus 
and as long as propodus and dactylus together ; with a spine at inner distal angle, 
and two apieal setae; carpus with four distal spines; propodus about equal in 
length to ischium, and more than half length of dactylus, which is not as long 
as its longest terminal apine. 
Adult male (arger form, ta 6-1 mm.). The peduncle of the uropod is half 
as long again as the rami and bears a long row of pliumose setae, the distal ones 
of different type; the exupod has more setae than in the smaller males, while the 
enclopod is armed with a dozen (or a little less) slender spines on proximal half, 
followed by four to eight stouter spines with imset bases; the greater number of 
(listal spines ocenrs in the largest of the males. 
The dactylus of the first peraeopods has a terminal brush of about a dozen 
sefae, 
Subadult female, Ina nearly adult female, with undeveloped marsupinm, 
the carapace is slightly more arehed dorsally than in the male, the median carina 
appearing rather more pirononneed when viewed from above; also it is wider and 
deeper, anc as wide as deep, Antennal notch wider. Antennal ridge and oeu- 
lar lobe as in male, The first pedigerous somite is not at all exposed. The first 
peracopods are relatively a little shorter, and (here is no spine on the merus of 
the seeond peracopods, 
Pedinele of vropoda. without long setae, much less than twice as long as 
telsonie somite but nearly one-third as long again as rami; exopod with six mar- 
vinal plumose setae and with two terminal muerones; inner inargin with four 
serrate spines. 
Length 4:2 nim, 
Tuvenile male (fig. 32, A). Carapace deeper and with dorsal margin more 
arched than in adult and first peraeopods a little shorter. Ocular lobe and uro- 
pods much the same. 
Length 3+5 mm. 
Tuvenile female (fig. 82, B-D). Carapace relatively deeper than in older 
female aiid more arched dorsally, The oenlar lobe is of the same shape; nine 
distinct lenses cannot be made out always, but appear as three large, oval, dark- 
ened areas. The peduncle of the nropoda is shorter and stonter but is a little 
longer than the rani; endopod with two to four marginal spines; exopod with- 
oft plimose setae, bat with finely serrate inner edge and two ierminal muecrones. 
Length 8+6 mm.. 
The differences in the curve of the dorsal edge of the carapace in male and 
femule, and in (he juveniles, are subtle but definite. In the last-named it is prac- 
tieally evenly arched, without the slight simuation most apparent in the adult 
male, 
CYCLASPIS8 NITIDA Sp. hov. 
Adult mate, tolegument thin, lightly calcified; surface shining, with tiny 
reticulate patterning and moderately distinet scattered pits, 
Carapace with dorsal edge evenly arched (except for the usual prominence 
of the adult male ocular lobe) ; two-sevenths of the total length of animal, dis- 
