26 A REVISION OF THE BEITI8H srECIES OF 



1853. Cyclops fcmbriatus, Fischer (8), p. 94, pi. III., 



figs. 19-28, 30. 

 1863. ,, crassicornis, G. 0. Bars (20), p. 47. 



1871. ? ,, Gredleri, Heller (23), p. 8, pi. I., figs. 3, 4. 

 1871. ,, pauper, Fric (24), p. 223, fig. 20. 



1875. ,, crassiconiis, TJljanin (28), p. 39, pi. VIII., 



figs. 9-16; pi. XII., fig. 1. 

 1878. .. ,, Brady (32), p. 118, pi. XXIII., 



figs. 1-6. 

 1880. ,, Poppei, Rehbcrg (33), p. 550, pi. VI., 



figs. 9-11. 

 1882. ,, crassicornis, Herrick (38a), p. 232, pi. IV., 



figs. 9-14. 

 1 884. ,, fimbriatus, Herrick (41 ), p.162, pi. R., fig.ll . 



1886. ,, ,, Vosseler (46a), p. 192, pi. VI., 



figs. 4-8. 

 1891. ,, „ Scbmeil (66), p. 35. 



The localities for this species given in the Ray Society Mono- 

 graph are Bolam Lake, Northumberland, and Tresco, Scilly 

 Islands. I have, however, recently (1891) found it in a ferru- 

 ginous ditch by the side of the road between Haydon Bridge 

 and Staward, Northumberland ; in Balmer Lawn Pond, and at 

 Castle Malwood, both in the New Forest ; in pools near high 

 water mark, Penmaenmawr, North Wales ; also in gatherings by 

 the Rev. Dr. Norman from Rainton Meadows, county Durham, 

 and Loch Achray, Perthshire, and from Raith Lake, Kirkcaldy 

 {Mr. T. Scott). Mr. Scourficld informs me that he has found 

 it at Hackney Marsh ; Hampstead ; River Lea at Tottenham ; 

 Stanstead, Herts ; Wanstead Park, Essex ; and Higham Park, 

 Woodford. 



The specific name crassicorms is scarcely tenable. Miiller's 

 description is extremely vague, and his figures seem to indicate 

 a much more robust species with very short furca. Fischer's 

 iigures, however, are quite sufficiently characteristic ; I there- 

 fore adopt his name, fimbriatus, which has priority over all 

 except that of Miiller. 



(;. Anterior antennae six-jointed. 

 20. Cyclops aequoreus, Fischer (PI. X., fig. 1). 



1860. Cyclops cequoreus, Fischer (16), p. 654, pi XX., 



figs. 26-29. 

 91 



