10 
AUSTRALASIAN ANTARCTIC EXPEDITION 
EXPLANATION OF PLATES. 
Fig. 1 .—Diastylis Mawsoni, sp.n. 
Fig. 2 .—Diastylis Mawsoni, sp.n. 
Fig. 3 .—Diastylis Mawsoni, sp.n. 
uropod. 
Plate XIX. 
Immature female, from the side. 
Anterior portion of body from above. 
Posterior somites of abdomen, with telson and 
Plate XX. 
Fig. 4 .--Diastylis Helleri, Zimmer. Anterior portion of body from the side. A. Syntype 
from South Georgia. B. Specimen from Cape Royds. C. Specimen obtained by 
Australasian Expedition (the outline of the carapace slightly restored). 
