
NICHOLLS—COPEPODA FROM SOUTH AUSTRALIA 53 
Genus PARANTHESsIUs Claus. 
Claus, 1889; Monod and Dollfus, 1932, p. 148. 
Monod and Dollfus (loc. cit.) state that Herrmannella Canu (1891) is synony- 
mous with this genus. While I am not entirely in agreement with them, I am 
not sufficiently familiar with the group to question their conclusion, and have 
contented myself with comparing the species found here with all those species 
which have been identified as belonging to either of these genera (with the excep- 
tion of H. rostrata Canu 1891, H. cynthiae Brian 1924, and Heteranthessius du- 
bius (T. Scott) 1903, and Pestalichomolgus pectinis (Pesta) 1908, the two latter 
also being included in Paranthessius by these authors, since the literature in each 
case has not been available to me). 

rl. 
Fig. 24. Paranthessius propinquus sp. nov. Mouth parts in situ seen from below. (X 565). 
The species found here would appear, with these reservations, to be distinct, 
and I have therefore described it as a new species. 
PARANTHESSIUS PROPINQUUS Sp. nov. 
Occurrence. IX, 2 females. 
Female. Length 1:02 - 1-06 mm. The body is of the usual shape in this 
genus, with a well-developed rostrum ventrally. The urosome is composed of four 
segments, the genital segment comprising half the urosome, including the caudal 
rami. These are about two and one-half times as long as wide, and as long as 
the anal and pre-anal segments together. The first antenna is 7-segmented and 
of the usual form; the second antenna consists of four segments, the first two 
large and sub-equal, each with a single lateral seta, the third seement is short and 
bears a distal curved spine and two setae, and the end segment bears six terminal 
