TRANSACTIONS 



OF THE 



NEW ZEALAND INSTITUTE 



Art. I. — Some New Zealand Amphipoda : No. 1. 



By Charles Chilton, M.A., D.Sc, LL.D., C.M.Z.S., Hon. Member Roy. Soc. 

 N.S.W., F. N.Z.Inst. ; Professor of Biology, Canterbury College, N.Z. 



[Read hefore the. Philosophical Institute of Canterbury, 1st October, 1919 ; received hy 

 Editor, 31st December, 1919 ; issued separately, 4th June, 1920.] 



During recent years many additional facts have become known with 

 regard to the Amphipoda of New Zealand through the investigation 

 of collections from the various Antarctic and other expeditions. As 

 circumstances are not at present favourable for the publication of a 

 comprehensive review of the group, it is proposed to issue, under the 

 title given above, a series of notes briefly detailing some of the new facts, 

 and giving references to sources where additional information can be 

 obtained. It will be seen that frequent use has been jnade of the MS. 

 notes and drawings and of the specimens placed in my hands by the 

 Hon. G. M. Thomson ; in several cases these are most useful for elucidating 

 points in connection with some of the earlier records of Amphipoda from 

 New Zealand. 



The names of authors followed by a date in parentheses refer to the 

 list on page 8. 



Leptamphopus novae-zealandiae (G. M. Thomson). Figs. 1 to 5. 



Pherusa novae-zealandiae G. M. Thomson, 1879, p. 239, pi. 10 C, 

 figs. 2, 2a-c. Pherusa neo-zelaniea G. M. Thomson and Chilton, 

 1886, p. 148. Panoploea dehilis G. M. Thomson, 1880, p. 3, pi. 1, 

 fig. 3 ; G. M. Thomson and Chilton, 1886, p. 150. Acanihozone 

 longimana (part) Delia Vaile, 1893, pp. 604, 620. Oradarea 

 longimana Walker, 1903, p. 56, pi. 10, figs. 77-89 ; Stebbing, 

 1906, p. 727; Chevreux, 1906, p. 54; Walker, 190f, p. 32. 

 Leptamphopus novae-zealandiae Stebbing, 1906, p. 294 ; Chilton,^ 

 1909, p. 621 ; Chilton, 1912, p. 488 ; Chevreux, 1913, p. 143. 



There has been considerable confusion in connection with this species, 

 and it seems desirable to support the synonymy given above by the 

 following historical account. 



In 1879 Mr. G. M. Thomson published his first paper dealing with 

 New Zealand Crustacea. In it he described several new species, including 

 Pherusa novae-zealandiae from Dunedin, of which he gave a brief descrip- 

 tipn and figures of the whole animal, of the gnathopoda, and of the telson 

 (1879, p. 239, pi. 10 C, fig. 2). 



The only work of reference on the Amphipoda available to Mr. Thomson 

 at that time was Spence Bate's Catalogue of the Amphipoda in the British 

 Museum. The amount of dissection and minute examination that is 

 necessary to distinguish between allied species was not then realized, and 



1— Trans. 



