British Freshwater llarpactids, 1S7 



Canthocamptus horridus^ S. Fischer. 



1860. CantTiocamjytus horridus, S. Fischer, " Beitr. z. Kennt. d. Ento- 

 mostr.," Abhandl. d. math.-phys. Classe der konigl. bayer. Akad. 

 d. Wissensch. 8ten Bandes, 3te Abth. p. 670, t. ii. figs. 57-59, 59 «. 



1880. Canthocamptus northmrAricus, G. S. Brady, op. cit. vol, ii. p. 57, 

 pi. xlv. figs. 1-14 



This species, which has been identified as the Cantho- 

 camptus horridus of S. Fischer, appears to be rare in British 

 inland waters. The only Scottish record I have for it is 

 Duddingston Loch, near Edinburgh ; Dr. and Miss Sprague 

 also record it from Edinburgh, but they do not give any 

 locality*. Dr. Brady obtained it sparingly in the lake at 

 Bolatn, Northumberland, and Mr. D. J, Scourfield has taken 

 it near London, 



Canthocamptus gracilis, G. O. Sars. 



186.3. Canf!hoca7nptns r/racilis, G. O. Sars, " Overs, af den indenl. 



Ferskv.-Copep.," Vidensk. i Christiania Forhandl. for 1862 (At'tr.;, 



p. 22. 

 1897. Canthocamptus. inornatus, T. Scott, Fifteenth Rep. Fishery Board 



for Scotland, pt. iii. p. 32.3, pi. ix. figs. 1-12. 

 1902. Crt«?/(oca???p^Ms y»'«c?/i.y, Lilljeboig, Synopsis Spec, hucusque in 



aquis dulcibus Suecise observ. Fam. Harpactic. p. 26, t. ii. lig.-i. 8-13 



(see footnote, p. 1). 



There appears to be no doubt that the species which I 

 described in 1897 under the name of Canthocamptus inornatus 

 is identical with the C. gracilis of Gr. O. Sars. I have found 

 it in several small lochs in Scotland, such as E/escobie Loch, 

 near Forfar, Linlithgow Loch, one or two small lochs near 

 Edinburgh, Loch Achroy (Trossachs), and otiiers. It has 

 been taken in the Isle of Wight by Mr. D. J. Scourfield, and 

 my son, Mr. A.. Scott, has sent it to me from Lancashire, 



Canthocamptus trispinosus, G. S. Brady. 



1880. Canthocaanptus trispinosus, G. S. Brady, op, cit. vol. ii. p. 55, 

 pi. xlv. figs. 15-22. 



This appears to be a rare species in the inland waters of 

 the British Islands, but it has apparently an extensive conti- 

 nental distril)ution ; it has been recorded by Herr H« 

 llehberg, Dr. S. A. Poppe, Dr. O. Schmeil, and Prof. W. 

 Lilljeborg. I know of no Scottish locality for C. trispinosus, 

 and the only station for it mentioned by Dr. Brady is the 

 River Nene near Peterborough ; but Mr. D.J. Scourfield records 



* Trans. Edin. Field Nat. & Micros. Soc. vol. iv. (1900-1901). 



