MARINE COPEPODA OE NEW ZEALAND. 47 



apex broad and bearing an even series of small teeth (fig. 5). Maxillae composed of four 

 digitiform lobes (fig. 6), which are armed with numerous spine-like divaricate setae. 

 Anterior foot-jaws laminar, bearing numerous lateral setae, but not divided into distinct 

 lobes (fig. 7) : posterior foot-jaws two-jointed, basal joint short and stout, with three rigid 

 spiniferous setae at the anterior distal angle ; second joint forming a strong subtriangular 

 hand, to the anterior angulated margin of which are attached two long stout setae, 

 to the narrow distal extremity are hinged two long, biarticulate, slender ungues, which 

 are armed with spine-like marginal setae (fig. 8). Two pairs of swimming-feet (fig. 9), 

 two-branched, each branch consisting of a single broad lamina; distal and outer 

 margins of the inner branch setiferous ; outer branch with four large lancet-shaped 

 spines on the outer margin, at the apex a larger spine, and on the inner margin three 

 long setae. The cephalothorax is equal in length to the abdomen, and consists of 

 three segments only, the first two being coalescent (figs. 1, 2) ; the abdomen is two- 

 jointed and suddenly narrower than the cephalothorax : to the posterior angles of the 

 last thoracic segment are attached two small setae ; angles of the first abdominal 

 segments produced backwards, second segment twice as long as the preceding, con- 

 stricted in front; caudal segments very short. Length -88 millim. 



Hah. Of this very interesting species two specimens were found in a surface-net 

 gathering from Otago Harbour, and one in the net at 7 fathoms from off Gisborne. 



The specimen described by Mr. T. Scott under the generic name Saphuella seems 

 to be, except as to the mouth-organs, very similar to the present, and I regret that, 

 owing to the Saphirella having passed out of Mr. Scott's hands, I have not been able 

 to compare the actual specimens. Mr. Scott's descriptions may be found in his paper 

 on Entomostraca from the Gulf of Guinea (Transactions of the Linnean Society, 

 2nd ser. Zool. vol. vi. pt. 1, 1894). 



[Closely allied to Paurocope is a form represented in these gatherings, by only two 

 imperfect specimens, which, like Paurocope, were taken at the surface in Otago 

 Harbour. I am unable, for want of suitable material, to give a complete account of 

 this species, and it seems not unlikely that it may really represent the male of 

 Paurocope, the general resemblance being very close, more especially in the swimming- 

 feet and caudal laminae. The antennules and antennae are, however, very different, 

 but this difference, to a lesser extent, is likewise seen in the closely related genera 

 Sapphirina and Corycceus. A very remarkable character is found in the presence of 

 two simple lenses (ocelli) at the bases of the second pair of foot-jaws. Figures of the 

 animal and some of its appendages are given in Plate XIII. figs. 10-17. 



Provisionally I propose the name Centromma thomsoni for this species.] 



vol. xv. — part ii. No. 3. — August, 1899. 



