
HALE—AUSTRALIAN CUMACEA 137 
Carapace less than one-fourth of total length and more than twice as long 
as deep; widest just behind first fourth of length, where it is much wider than 
deep ; dorsal margin in side view not arched and not elevated posteriorly ; surface 
conspicuously pitted; edges of the pits forming a raised reticulate pattern and 
with minute blunt spines, arranged partly in double rows; there is a low, wide, 
median longitudinal carina, with margins irregular owing to pitting; at about 


nine Bete eco 

sat [ee 1s eee Se ones 

Fig. 56. Cyclaspis pruinosa, type male; A, first antenna; B, third maxilliped; C, first 
peraeopod and C1, dactylus of same; D to F, second, third and fifth peraeopods; G, fifth pleon 
and telsonic somites, and uropod; G1, terminal half of rami of uropod (A, % 50; B to G, x 32: 
Cl and Gl, & 84). 
two-thirds of its length this carina is crossed by a similar short transverse carina, 
scarcely elevated and indicated mainly by its freedom from pitting. Pseudoros- 
tral lobes barely attaining level of ocular lobe; anterior margin of each with a 
finely serrated, laminate projection above antennal notch, concealing first antenna 
when this is directed upwards; from this little lobe a short ridge projects back- 
wards, and below it is an excavation, immediately above the pronounced, aeute 
antennal tooth, which has a finely serrate antero-inferior edge. Ocular lobe as 
wide as long, with anterior margin bilobed; eye distinct, a mass of pigment. on 
each side of lobe, 
Each pedigerous somite with a spinose dorsal median carina and with a 
dorsolateral spinose carina on each side, most distinctly developed on the fourth 
and fifth somites. 
