258 Transactions. — Zoology. 



Art. XVIII. — Notes on some Neiv Zealand Am2:)hi])oda and 



Isopoda. 



By Chas. Chilton, M.A., B.Sc. 



[Bead before the Otago Institute, 10th November, 1891.'] 



During the six years that have elapsed since the pubHcation 

 of a critical list of the New Zealand Amphipoda and Isopoda 

 by Mr. G. M. Thomson and myself/'' much new material has 

 been collected of which no accomit has yet been published, 

 while the publication of the reports on the " Challenger " Iso- 

 poda and Amphipoda, by Beddard and Stebbing respectively, 

 has shown that there are many things that need alteration in 

 the nomenclature of the species already known, and many 

 points concerning them that require more fully working out. 

 To do this properly it would be necessary to begin at the 

 beginning of the list, and to take the species one by one and 

 work each out fully. This, however, would be a work of very 

 considerable magnitude, and would require the continuous 

 attention of the worker for a long time. In the present paper 

 I shall content myself with giving a number of miscellaneous 

 additions to our knowledge on the subject. I describe some 

 new forms, record others already known elsewhere, but new 

 to New Zealand, and draw attention to a few of the changes 

 and additions made in the " Challenger " reports. 



For material, besides what I have collected myself, I am 

 indebted to Mr. E. M. Laing, of the Boys' High School, Christ- 

 church ; to Mr. H. Suter, of Christchurch ; and particularly to 

 Mr. G. M. Thomson, Science Master of the Dunedin High 

 Schools, who, feeling unable at the present time, through 

 pressure of other matters, to work at the subject himself, has 

 very kindly handed over to me all the undescribed Amphipoda 

 and Isopoda in his collection, together with many of his own 

 notes and drawings. Among the specimens that I have thus 

 received are many collected by Mr. J. F. Erecson, of Waipa- 

 papa Point, and by Mr. F. S. Sandager, of Mokohinou, both of 

 whom have in this way rendered valuable assistance. Only a 

 small part of the material thus placed at my disposal has been 

 used in the preparation of this paper ; I hope to be able to 

 make use of the remainder on some future occasion. 



In the case of species previously described, I have en- 

 deavoured as far as possible to give the reference to our 

 Critical List,''' and to any papers published since, but I have 



* Trans. N.Z. Inst., vol. xviii., p. 141. 



