Gr. M. Thomson. — On the New Zealand Copepoda. 113 



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 antenna? 20-jointed; first 

 the largest, next eight much broader than long, succeeding joints longer 

 than broad ; seta? rather numerous. Posterior antenna? with a small 

 1 -jointed appendage, bearing two small seta? 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 seta?. Caudal segments about as long as 

 broad ; middle seta? about as long as abdomen, finely plumose. - 



Length (including caudal seta?), J^ 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. 



2. Artotrogus ovatus, n. sp. PI. XL, 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 antenna? 

 short, 8- (? 9-) jointed, furnished with numerous seta? ; first and second 

 joints longest, rest subequal ; a long auditory seta from extremity of sixth 

 joint. Posterior antenna? 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 3-jointed and normally developed. Fifth feet consisting 

 of a very short ovate lobe, with three seta?. Caudal segments nearly as 

 broad as long ; seta? all plumose, central rather longer than abdomen, 

 outer about three-fourths as long. Ovisacs two, containing each four 

 rather large ova. 



Length, -£§ of an inch (exclusive of seta?). 



Hab. Two specimens taken on kelp in Paterson Inlet. 

 Genus Acontiophorus, Brady. 



Body suborbicular or sub-pyriform. Anterior antenna? 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. Maxilla? 2-branched, setiferous at the 

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