162 ANNALS OF SCOTTISH NATURAL HISTORY 



that the species was first discovered in a slow-running stream 

 at Ashburn, Sunderland, which appears also to be not far 

 distant from the sea. My friend Mr. D. J. Scourfield, 

 F.R.M.S., who found the species in Connaught Water, 

 Epping Forest, has the following remarks on its distribution : 

 "Since the species was first described in 1867, it appears 

 to have been only once again recorded in the British Islands 

 (viz. in Loch of Beiton, Unst, by T. Scott and R. Duthie), 

 and on the Continent it has only been found by a few 

 observers. It is a fine species, being, in fact, the largest of 

 the genus. Numerous specimens were taken in Connaught 

 Water on the loth of March 1894, but curiously enough 

 none could be found about a month later, nor has the species 

 been seen since." l The gathering from the pools on the 

 King's Links in which the Macrothrix was found was 

 obtained on 4th May of the present year. A short-spined 

 variety of DapJmia pulex was also observed in the same 

 gathering. 



Several species of Copepoda have been observed in the 

 gatherings from the King's Links. Cyclops vernalis was 

 obtained in September and in May ; several specimens of 

 Cyclops bisetosus were also obtained, but only in May ; 

 Tachidius littoralis, Poppe (T. crassicornis, T. Scott), occurred 

 in both the gatherings mentioned, while Thersites gasterostei, 

 Pagenstecher, which I recorded last year as an addition to 

 the British fauna,' 2 was frequent on the inside of the 

 gill -covers of small three -spined sticklebacks, Gasterosteus 

 aculeatus, captured with the hand-net while examining the 

 pools in September. Altogether about nine species of 

 Copepoda have so far been observed in these pools. 



The Ostracod fauna of these pools presented a greater 

 variety of forms than that of the other two groups, but the 

 gathering which yielded the largest number as well as variety 

 was the one collected in September. Cypria ophthalmica was 

 obtained in all the three gatherings, but Cypria exculpta was 

 only obtained in September. Cydocypris serena (Koch) and 



1 ' The Entomostraca of Epping Forest,' by D. J. Scourfield, part ii., "The 

 K-scx Naturalist," vol. x. p. 317 (1898). 



"Eighteenth Annual Report of the Fishery Board for Scotland," part iii. 

 p. 146, pi. v. figs. 1-7. 



