
NICHOLLS—COPEPODA FROM SOUTH AUSTRALIA 21 
Female. Length 0-95 - 1:04 mm. The body has the usual rounded shape 
of the genus, but the genital and pre-anal segments have posterior projections 
at their hinder ends. There is a well developed, pointed rostrum. The first an- 
tenna is 11-segmented, with a sensory filament. on the eighth segment; the second 
antenna has a long exopod, extending to beyond the middle of the end segment. 

Fig. 8. Acontiophorus zealandicus sp. nov., male and female. Female x 32 3 urosome, both 
sexes, and siphon X 67; appendages 200. The mandible palp is shown also at the same mag- 
nification as the siphon for comparison. 
The siphon is very long, extending well beyond the caudal rami, almost reaching 
to the end of the caudal setae. The mandible palp is a long delicate seta, densely 
plumose for the greater part of its length. The maxillule has a short outer lobe 
with three setae, one of which is plumose, and a longer inner lobe with four setae, 
two of which are stouter than the others and plumose. The maxilla and maxilliped 
do not show any specific differences. The swimming legs are armed in a manner 
similar to those of scutatus (cf. Sars, 1915). The seta formula is as follows: 
