191 



CRUSTACEA. 



PART VI.— TANAIDACEA AND ISOPODA.* 

 BY W. M. TATTERSALL, D.Sc. 



{Keeper of the Wancliester Museum). 

 WITH TWO FIGURES IN THE TEXT AND ELEVEN PLATES. 



PAGE 



I. — Introduction . . . . . . . . . , 191 



II. — List of Species .......... 194 



III. — List of Stations at which Specimens were obtained . ... 195 



IV. — Descriptions of Species : — 



Tanaidacea .......... 197 



Isopoda .......... 199 



V. — List of Papers referred to . . . . . . . . 252 



Index ........... 255 



I.-INTRODUCTION. 



The collection of Isopoda (including Tanaidacea) obtained by the " Terra Nova " 

 Expedition comprises forty-seven species, of which twenty-six were captured in the 

 Antarctic seas, seventeen off the coasts of New Zealand, two at a station near the 

 Falkland Islands, and two in the Atlantic Ocean. 



Taking account only of the species captured in Antarctic waters, the numbers 

 recorded by other South Polar Expeditions, the reports of which have been published, 

 are : — " Southern Cross," nine ; " Frangais," seventeen ; " Pourquoi Pas? " twenty-four ; 

 " Discovery," twenty -six ; " Gauss," fifty-eight. The great deficiency in the present 

 collection is in small species of the Asellota, of which the " Gauss " in particular 

 captured a large number. 



* Manuscript received January 10, 1920 (S. F. H.). 



VOL. Ill, 2 F 



