G. M. Tuomson.—On the New Zealand Copepoda. 118 
1. Artotrogus boeckii, Brady. Pl. IX., figs. 1-7. (Monogr. Brit. Cope- 
poda, vol. iii., p. 60). 
First segment less than a third as long as the whole body ; breadth one 
and a half times its length ; succeeding segments very much broader than 
long. Abdomen short and narrow. Anterior antenne 20-jointed ; first 
the largest, next eight much broader than long, succeeding joints longer 
than broad; sete rather numerous. Posterior antenne with a small 
1-jointed appendage, bearing two small sete on the second joint. Mandible 
in the form of a long filiform seta. Siphon lobes very narrow and slender. 
First four pairs of feet normally formed. Fifth pair ciliated on the mar- 
gins, furnished with two apical sete. Caudal segments about as long as 
broad; middle sete about as long as abdomen, finely plumose. 
Length (including caudal sete), 4 of an inch. 
Hab. Taken (free) with the dredge in Otago Harbour. 
Originally taken by M. Thorell from an Ascidian ; also obtained, but 
only two or three specimens, by Dr. Brady, amongst weeds, and by a 
surface-net in the west of Ireland. 
9. Artotrogus ovatus, n. sp. Pl. XI., figs. 11-14. 
Female.—Body ovoid, first segment twice as long as the three following 
ones, last thoracic segment very short ; abdomen slender, elongated, about 
half as long as thorax, segments subequal in length. Anterior antenne 
short, 8- (? 9-) jointed, furnished with numerous sete ; first and second 
joints longest, rest subequal ; a long auditory seta from extremity of sixth 
joint. Posterior antenne with a small 1-jointed secondary branch, ter- 
minated by a single long seta; last joint bearing two terminal lance-like 
spines, and a short sub-terminal seta. Mouth siphon very short, conical. 
Mandibular seta not reaching to second thoracic segment. Swimming feet 
with both branches 8-jointed and normally developed. Fifth feet consisting 
of a very short ovate lobe, with three sete. Caudal segments nearly as 
broad as long; sete all plumose, central rather longer than abdomen, 
outer about three-fourths as long. Ovisacs two, containing each four 
rather large ova. : 
Length, 3 of an inch (exclusive of sete). 
Hab. Two specimens taken on kelp in Paterson Inlet. 
Genus Acontiophorus, Brady. 
Body suborbieular or sub-pyriform. Anterior antenne 11-jointed (or 6- 
jointed in one species), shorter than the first segment of the cephalothorax ; 
posterior 4-jointed, bearing two lancet-shaped spines at the apex, and with 
or without a small secondary branch. Mouth produced into a very long 
slender siphon, which exceeds the cephalothorax in length. Mandible 
elongated, filiform, without a palp. Maxille 2-branched, setiferous at the 
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