MARINE BIOLOGICAL STATION AT PORT ERIN. 57 



species, and on collections from the West Indies, Madeira 

 and the Canaries, the West Coast of Ireland, the Fgeroe 

 Channel, and a traverse through the North Atlantic to 

 Quebec. He also described Copepoda from the Bay of 

 Bengal, the Antarctic, the Red Sea and East Coast of 

 Africa, and recently from the " Oceana " expedition in 

 the North Atlantic. As a complete list of his published 

 works will be appended to this Memoir, further particulars 

 need not, perhaps, be given here ; but I may add that in 

 these papers he described many new forms, aided in the 

 elucidation of not a few obscure points, and greatly 

 extended our knowledge of the geographical distribution 

 of the group. 



Thompson's last piece of scientific work was a 

 large report, undertaken jointly with Mr. Andrew 

 Scott, upon the Copepoda of the Ceylon Pearl Banks, 

 recording 283 species, of which seventy-six are described 

 as new to science. This extensive work has since been 

 published by the Royal Society ; it was completed during 

 October, and the last of his sheets were passed for press a 

 few days before he was struck down. It has been 

 referred to by one who saw the proofs as the pioneer work 

 on tropical Harpacticidse and Lichomolgidse. Thompson's 

 papers have been published for the most part in the 

 Transactions of the Liverpool Biological Society and the 

 Reports of the L.M.B.C, the Journal of the Linnean 

 Society, the Annals and Magazine of Natural History, and 

 the Reports of the British Association. But there was 

 much of his information that he did not publish. He was 

 so naturally kind and liberal that all that he knew, and 

 all the specimens he had, were alwa}*s at his friends' 

 disposal. For example, he sent his single specimen of 

 Artotrogus orbicularis, found at Puffin Island, to be 

 described and figured by GKesbrecht in his Naples mono- 



