216 Transactions. — Zoology. 



for New Zealand ; and also the Cladoceres, as far as I 

 know. 



The result of this treatise is : Altogether, twelve Copepods 

 and four Cladoceres are found in the Hauraki Gulf, only three 

 of which (as named above) are known from other reports for 

 New Zealand. One genus and three species of the Copepods 

 and three species of the Cladoceres are quite new. As to the 

 treatise of G. M. Thomson, none of the Copepods described 

 there have been found in the Hauraki Gulf — a proof that there 

 is much to do still in this direction, principally with regard to 

 the littoral fauna. 



For comparison, in the very well searched harbour of Kiel, 

 in Germany, twenty-six Copepods have been collected, of 

 which fourteen are Harpacticidae, all belonging to the littoral 

 fauna ; and in the sea near Naples altogether 125 (five-twelfths 

 of all known free Copepods). It is very interesting that, of 

 the 129 Copepods belonging to the Mediterranean, twenty- 

 seven have never been found in the Atlantic, but only in the 

 Pacific Ocean. 



The following is a catalogue of the species which I have 

 collected. The classification is that of Giesbrecht : — 



I. Copepoda. 



1. Fam. Oalanidae. 



(1.) Paracalanus parvus, Claus. 



(2.) Clausocalanus arcuicornis, Dana. 



2. Fam. Centropagidae. 



(3.) Centropages typicus, Kri'iyer, var. aucklandicus. 

 (4.) Temora turbinata, Dana. 

 (5.) Leuckartia, sp. (?). 



3. Farn. Pontellidte. 



(6.) Labidocera cervi, n. sp. ¥ . 

 (7.) Acartia clausii, Giesbr. 



4. Farn. Cyclopidae. 



(8.) Oithona nana, Giesbr. 



5. Fam. Harpacticidae. 



(9.) Euterpe acutifrons, Dana. 



6. Fam. Oncaeidae. 



(JO.) Oncaeola specialis, n.g. et sp. 



7. Fam. Corycaaidae. 



(11.) Corycaeus tenuis, ? , Giesbr. 

 (12.) Corycaeus aucklandicus, n. sp. 



I have not thought it necessary to give descriptions of the 

 known species, for they are fully described in the work of 

 Giesbrecht, and of the new genus and species I mention only 

 the differential characters, giving references to the plates. 

 The figures have been exactly executed with a drawing ap- 

 paratus. 



