
HALE—AUSTRALIAN CUMACEA 377 
lobe much wider than long, much less than half length of pseudorostrum, and with 
three pale lenses, 
Pedigerous somites (like those of pleon) with shallow, irregular, large pit- 
tings; somites successively increasing in length dorsally; fourth and fifth as wide 
as carapace, the others narrower; pleural parts produced forwards on second 

Fig. 13. Gynodiastylis ampila, syee female; ant,, first antenna (% 32; fiagella, x 240); 
; 
mxp., first to third maxillipeds (* 32); prp., first to third peracopods (x 32; distal portion 
of third leg, X 75); urop,, uropod with fifth and sixth pleon somites, and telson ( 32); tels, v., 
ventral view of telaon and peduncle of uropod (x 32); tela, 1., telson from the side (X 33). 
and third somites, and backwards on third to fifth; fourth with a pair of indistinct 
longitudinal dorsal ridges, 
Pleon equal in length to cephalothorax; somites depressed; fifth half as wide 
again as deep, one-third as long again as width and a little longer than sixth somite, 
which is little longer than wide, scarcely dilated posteriorly, and has the hinder 
margin medianly incised on the back; telson not very much shorter than sixth 
