British Freshwater Ilarpactids, 193 



antennules ; the secondary branches of the antennse are small 

 and one-jointed ; the mandible-palp is small and composed 

 of two joints, the end one being smaller than the other; the 

 first pair of thoracic feet are short, the two branches are sub- 

 equal in length, and the inner branches are two-jointed, as ia 

 Attheyella^ the end-joint being the shortest ; the inner 

 branches of the next three pairs are short and consist of two 

 suhequal joints. 



Moraria hrevipes (G. O. Sars) , 



1863. Canthocamptus brevipes, G. O. Sars (non Mrazek Si, Scott), op. 



cit. p. 24. 

 1889. Canthocamptus gracilis, S. A. Poppe (non C.yracilis, G. 0. Sars), 



Abhandl. d. naturwiss. Vereine zu Bremen, Bd. x. p. 544, t. viii. 



figs. 5-9. 

 1893. Moraria Anderson-Smithi, T. Si, A. Scott, Ann. & Ma^. Nat. 



Hist. (6) vol. vi. (March 1893) p. 213, pi. viii. 

 1893. Ophiocamptiis Sarsi, Mrazek, " Beitrag zur Kenntniss der Har- 



pacticidenfauna des Siisswassers," Zool. Jahrb. (May 1893), Abth. f, 



Syst., Geogr. u. Biol. d. Thiere, 7ter Bd. p. 113, t. v. tigs. 60-65. 

 1893. Ophiocainptus Sarsi, Schmail, Djutichl. freileb. Siissw.-Copep., 



ii. Till, Harpact. p. 86, pi. vi. figs. 1-16. 

 1900. Moraria Sarsi, W. Hartwig, "Die freileb. Copep. der Provinz 



Brandenburg,'' Forschuugsber. der Biol. Stat. z. Plon (Separat- 



abdruck), p. 11. 



This species lias been obtained in lochs in Unst and else- 

 where in Shetland ; in Barra and North Uist, Outer 

 Hebrides? It was obtained in Loch Morar, Inverness-shire, 

 Loch Doon, Ayrshire, and other lochs in the west of Scotland ; 

 and in lakes in Aberdeenshire, Midlothian, and elsewhere in 

 the east of Scotland. Mr. D. J. Scourfield has also taken it 

 near London. 



Accordin,!^ to Lilljeborg* the form described by Herr Al. 

 Mrazek and myself under the name of Moraria {Ophio- 

 camptus) brevipes (G. O. Sars) is not the species described 

 by Sars under that name, the true Canthocamptus brevipes, 

 G. O. Sars, being, on the contrary, the form described by me 

 under the nauie oi Moraria Anderso/i-Smithij and by Mrazek 

 under the name of Ophiocamptus Sarsi. It is interesting to 

 note that this species, which is still retained in the genus 

 Canthocamptus by Prof. Lilljeborg, was, by Mrazek and 

 myself, unknown to each other, considered to be sutficieatly 

 distinct from the typical Canthocamptus to warrant its 

 removal to another genus. 



♦ ' Svenska arter af. Familien Harpacticidae,' pp. 44-48 (1902). 



