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XXII].—The Amphipoda of the Scottish National Antarctic Expedition. By Chas. 
Cmiton MA: Se. (NZ), M_B., C.M. (Hdin.), Hon. LL.D: (Aberd.), FILS: 5 
Professor of Biology, Canterbury College, New Zealand. Communicated by 
Dr W. 8. Bruce. (With Two Plates.) 
(MS. received March 30,1912. Read June 17,1912. Issued separately September 21, 1912.) 
CONTENTS. 
PAGE PAGE 
I. Introduction . j : . 455 | IV. Tropical and North Atlantic eu . 514 
II. List of Species, fii Deion : . 460 | V. Bibliography . 2 Ol 
III. Antarctic and sub-Antarctic Species ; . 462 ' VI. Explanation of Plates : . 520 
I. INTRODUCTION. 
Shortly after my arrival in Britain in December 1911 I was honoured by a request 
from Dr W. 8. Bruce, leader of the Scottish National Antarctic Expedition, that I would 
prepare a report on the Amphipoda collected during the voyage of the Scotea. Dr 
H. J. Auuen, Director of the Marine Laboratory, Plymouth, very kindly offered me 
accommodation in the laboratory for the work, and free access to the library of the 
laboratory, which, fortunately, is very well supplied with works on the Crustacea. I was 
assured also of assistance from Mr T. V. Hopason, the Curator of the Museum and 
Art Gallery, Plymouth, from Mrs E. W. Sexton, and from other friends ; and accord- 
ingly I undertook the work. I received the main portion of the collection, contained 
in sixty-three bottles, on the 8th January 1912, and a few days later I received from 
Dr W. M. Tarrersaut of the Manchester Museum eighteen tubes containing additional 
Amphipoda found among the Schizopoda of the Scottish National Expedition which 
had been submitted to him for determination; these additional specimens contained 
three or four species not represented in the collection first received. 
Twelve tubes of additional specimens from Dr TatrrErsaLu and many further 
specimens from the Scotia collection reached me in May. These consisted chiefly 
of duplicates of species previously sent, but contained also two species not previously 
seen. Some additions to the report, which had been sent in at the end of March, were 
therefore necessary. 
With very few exceptions, the Amphipoda proved to have been particularly well 
preserved, and the localities, depth, and other particulars had been in all cases carefully 
recorded. I have given full details of these, even at the risk of some slight repetition, 
as they may prove to be of use in helping to decide questions now unforeseen that may 
afterwards arise. In several cases, especially among the Lysianasside, large numbers 
of specimens of various sizes had been collected from each locality, and these complete 
sets have been of very great use in helping me to ascertain the changes that take place 
in some species during the growth of the animal, and in determining the differences 
TRANS. ROY. SOC. EDIN., VOL, XLVIII. PART II. (NO, 23). 69 
