
NICHOLLS—COPEPODA FROM SOUTH AUSTRALIA 29 
It is regrettable that the species of this genus found here (with one excep- 
tion) occurred as isolated specimens, since the examination of a series might show 
sufficient variation to permit of this species and similis being included in capitalis 
and thorelli respectively. 
CRYPTOPONTIUS PROXIMUS sp. nov. 
Occurrence. IX, 1 female. 
Female. Length 1-02 mm. The body is much as in similis, having the head 
segment about as wide as long, but the first free thoracic segment has the lateral 
projections more rounded. ‘The first antenna is 9-segmented, the first two seg- 
ments sub-equal, the second to seventh and ninth and tenth being fused. In the 
second antenna the exopod bears a single long terminal seta, and the end segment 
one spine and two setae. The siphon scarcely reaches the base of the first legs. 
The maxillule has slender lobes, the outer armed with a stout spine and a shorter 
seta, the inner with a very short seta and small spine. The maxilla has the ter- 
minal portion undivided and ends in a blunt curved claw. The swimming legs 
have their seta formula as follows: 
endopod. exopod. 
p.l. 1.1.321. 1.1.323. 
p.2. 1,2.321. 1,1.423. 
p.3. 1,2.321. 1.1.423. 
p.4. —_— 1,1.423. 
The fifth legs are almost square, with two terminal and one lateral setae and the 
caudal rami are a little longer than wide. 
This species resembles similis in the shape of the body, but in other features 
it, approaches more closely to latus... It differs in several particulars: in the first 
and second antenna, the armature of the first legs and in the fifth legs. The 
siphon also is relatively longer and the species is considerably smaller than similis. 
CRYPTOPONTIUS LONGIPES sp. Nov. 
-Occurrence. IX, 3 females; X, 2 males; XII, 1 male; XIII, 1 male. 
Female. Length 1-13 mm. The body is comparatively slender, its width less 
than half the total length; the width of the head segment is five-sixths of its length. 
In the urosome the genital segment has a comparatively short undilated posterior 
portion, which is wider than the following segments. Of these the first two are 
short and sub-equal and together no longer than the anal segment. The caudal 
rami are wider than long. 
The first antenna is 9-seemented, the first two segments are sub-equal, the 
second to seventh and ninth and tenth being fused.’ The second antenna has 
a very short basal segment; the exopod is minute and unarmed; the end segment 
has no lateral seta but a fringe of hairs, and two unequal terminal setae. The 
siphon is comparatively long, reaching beyond the base of the first legs. The 
maxillule has two stout spines on the outer lobe and two long delicate setae on the 
inner lobe. The maxilla has the terminal part of the claw separated from the 
proximal portion and the maxilliped has the two distal segments fused. The seta 
formula for the swimming legs is: 
endopod. exopod, 
pl 1.9.320. 1.1.223. 
p.2 1.2,321. 1.1.423. 
p.3 1,2.321. 1.1.42, 
p.4 — 1.1.423, 
The armature of the first legs is somewhat uncertain, as these were so strongly 
eurved inwards and forwards that on mounting they broke up and the setae were 
