Kkamek. — Pelagic Gopepods and Cladoceres of Auckland. 219 



The abdomen is nearly the same as that of L. nerii and 

 orsinii, but the fifth foot of these two is very different. On 

 the contrary, the fifth foot is a little like that of L. pavo, but 

 of this the abdomen is very different. Therefore it seems to 

 be necessary to form a new species. 



I have only found one female. There is also the female 

 only of L. orsinii and pavo, Giesbrecht, known from the Eed 

 Sea. L. nerii $ and ? has been found in the Pacific, near 

 the equator, like most other species of Labidocerce. 



7. Acartia clausii, Giesbr. 



Has previously only been found in the Northern Hemi- 

 sphere. It is always present in the harbour and gulf. 



4. Fain. Cyclopid.e. 



8. Oithona nana, Giesbr. Plate XVII., figs. 1-9. 



Very common throughout the harbour. It is peculiar that 

 this species has only recently been found by Giesbrecht at 

 Naples, and not elsewhere. 



Setae terminales of the furca feathered (fig. 1), and, as well 

 as the end of the abdomen, of a dark-red colour, reminding 

 one of the same parts of the related ThoreUia brunnea, Boeck, 

 var. antarctica, found by Thomson in the Otago Harbour 

 (vol. xv., p. 95, pi. v., fig. 19). 



Oithona similis, Claus, seems also to be present in the 

 harbour, or perhaps some other species ; but time did not 

 allow me to identify all the specimens. 



5. Fam. Hakpacticid^. 



9. Euterpe acutifrons, Dana. 



Has already been found in the Pacific, near Easter Island, 

 as mentioned before. This Harpacticid is one of the few 

 pelagic ones very common in all parts of the harbour and 

 gulf, males and females. 



6. Fam. Onceid.e. 

 Oncseola, now gen. 



Appearance Cyclops-hke, and therefore like Onccea. 



Antenna i. 6-jointed. 



Antennna n. 4-jointed. 



First and second maxillipeds different. 



The principal difference is that the ramus internus of the 

 fourth foot is not nearly as long as the ramus externus, but 

 much smaller, and of the same form and size as the fifth foot, 

 which is a staff of middling size and armed with two seta? on 

 the end. 



Only found a few female specimens in the Waitemata Har- 

 bour. 



