18S Mr. T. Scott on 



it from one or two ponds near London*, and the Rev. A. M. 

 Norman has quite recently sent me specimens from Wroxham^ 

 Norfolk. 



Canthoccimptus minufas, Clans. 



1863. Canthocamptus minutuS; Claus, Die frei lebenden Copepoden, 



p. 122, t. lii. figs. 1-3. 

 1895. Canthocamptus minutus, T. & A. Scott, Ann. Scot. Nat, Hist. 



(Oct. 1895), p. 236, pi. iv. figs. 14-20. 



This is one of the smaller of the freshwater Ilarpactids, 

 and its distribution appears to be coextensive with the British 

 Islands ; but it is only within recent years that it has been 

 recognized as a member of the British Copepod fauna. 



Canthocamptus Jiirticoniis, T, Scott. 



1895. Canthocamptus hirticornis, T. Scott, Thirteenth Rep. Fishery 

 Board for Scotland, pt. iii. p. 251, pi. ix. figs. 13-26. 



1902. Cu7ithocamptus niegalops, Lilljeborg, '' Synop. Spec, bucusque in 

 aquis dulcibus Sueciae observ. Fam. Harpact.," K. Sv. Vet.-Akad. 

 Ilandlingar, Band xxxvi. no. 1, p. 30, pi. ii. figs. 14-19. 



This is a widely distributed species, at least in Scotland ; 

 it has been found in small lochs in the Outer Hebrides and 

 in Shetland, as well as in several places on the mainland; 

 but it occurs usually near the sea. It has been obtained in 

 water that appeared to be quite fresh, as well as in slightly 

 brackish water. I have no record of it from any inland 

 locality. Mr. D. J. Scourfield has taken 0. hirticornis in a 

 marsh near Barmouth Junction, North Wales f- 



The form recorded recently by Herr Prof. Lilljeborg in 

 his interesting work on tiie freshwater Harpacticidte of 

 Sweden under the name of Canthocamptus viegalops appears 

 to be identical with C. hirticornis. 



Canthocamptus pahistris, G. S. Brady. 



1880. Canthocamptus palustris, G. S. Brady, Mon. Brit. Copep. vol. ii. 



p. 53, pi. xxxix. figs. 13-23. 

 1895. Carithocamptus palustris, var. elongattis, T. & A. Scott, Ann. & 



Mag. Nat. Hist. (6j vol. xv. p. 459, pi. xvi. figs, 7-17. 



Though Canthocamptus palustris has a distribution ex- 

 tending from Shetland to the Scilly Islands it does not appear 

 to be very common. Its usual habitat is in ponds and 



* " The Entomostraca of Epping Forest, Part II.," The Essex Natu- 

 ralist, vol. X. p. 2G0, tab. 1. (18ii8). 



t " Entomostraca of North Wales," Journ. Quekett Microscopical 

 Club, ser. ii. vol. vi. p. 135 (Nov. 1895). 



