11.6 BRITISH OOPEPODA. 



closely with those of G. Glausii. I cannot help sus- 

 pecting that after all both C. Kaufmanni and G. Glausii 

 may be merely varieties of one and the same species. 

 As regards nomenclature, — Heller's specific name, 

 whether applicable to the present species or not, must 

 be discarded, having been used by Sir John Lubbock 

 to designate a far different form with 17-jointed 

 antennae. I therefore propose for this species the 

 name Heller i.* 



I have found C. Helleri at Tresco (Scilly), Fenham, 

 near Newcastle, at Whitburn (County Durham), in 

 Oulton Broad (Suffolk), and in Lough Cam (Conne- 

 mara) . 



12. Cyclops phaleratus, Koch. PI. XXIII, figs. 7 — 13. 



Cyclops phaleratus, Koch. Deutsclilands Cmstaceen, &c, H. xxi, 

 tab. ix (1841). 



— — Sars. Oversigt Ferskvandscopepoder, p. 46 



(I860). 



— — Uljanin. Reise in Turkestan (Crustacea), 



p. 38, t. ix, figs, 1—5 (1875). 



— ca7ithocarpoides, Fisclier. Bulletin de la Soc. Imp. des 



Nat. de Moscou, torn. 24, p. 426, t. x, 

 fig. 24, 25, 32-38 (1851). 



— — Lilljeborg. De Crust, ex ord. trib., p. 208 



(1853). 



— — Claus. Das Genus Cyclops, p. 37, t. i, 



figs. 6 — 10 (1857) ; Die frei-lebenden 

 Copepoden, p. 102, t. iv, figs. 1 — 4 

 (1863). 



— — Fric. Die Krustenthiere Bohmens, p. 223, 



fig. 19 (1871). 



Anterior antennas short and moderately stout, not 



* The inscription on Plate XXII, " Clausii" should stand "Helleri." 



