
NICHOLLS—COPEPODA FROM SOUTH AUSTRALIA 39 

Fig. 18. Pteropontius barbatus sp. noy. 
appendages X 240, 
Female X 38; rostrum and urosome X 144; 
ventrally; a well-developed dorsal crest runs along this and the two following 
segments which, together with the genital and second urosome segments, have well- 
developed epimeral plates with somewhat serrated edges. The genital segment 
