
HALE—AUSTRALIAN CUMACEA 401 
Adult male. Resembles the female in general form, but carapace not so deep 
and dorsal ridges less markedly serrate. 
Carapace little deeper than wide and. two-thirds as long again as deep; it is 
one-third of total length of animal and three-fourths as long again as pedigerous 
somites together. Antero-lateral margin not sloping back as in female and antero- 
lateral corner dentate. Pseudorostrum, as seen from above, relatively broader 
than in female, and ocular lobe a little broader but again very short and without 
eyes. 
\ 



o.pace ¢ 
Fig, 31, Gynodiastylis mulabilis, types female and male; ¢. pace, anterior portion of 
carapace, slightly flattened ( 52); ant., antennae and lips (male, X 52; female, X 135); mand., 
mandible ( 52); prp., second and fourth peraeopods ( X 52); urop,, uropod with fifth and sixth 
pleon somites, and telson (X 52); tels., ventral views of distal portion of telson (x 210). 
Anterior pedigerous somites crowded ; second with anterior pleural part over- 
lapping first to carapace; third very short dorsally, expanded on sides, but second 
and third legs not separated more than others. 
Pleon not quite as long as cephalothorax and with sides smoother than in 
female; the telson is narrower and longer (longer than sixth somite), with the 
distal part quite slender, and there is only one tooth on each lateral margin; the 
single pair of spines are subterminal and the apex tapers to a point. 
