16 MICHIGAN FISH COMMISSION— BULLETIN NO. 5. 



1884. C. oiihonoides Herrick, p. 150, pi. S, figs. 2-6. 



1885. " Leuckarti Daday, p. 218. • 

 1885. " simplex Daday, p. 236. 



1885. " pectinatus Daday, p. 223, pi. I, figs. 7-13. 



1886. " simplex Vosseler, p. 193, pi. IV, figs. 15-17. 



1887. " " Herrick, d. 17, pi. VII, fig. 1, a-j. 

 1890. " " Thaliwitz, p. 79. 



1890. " " Lande, p. 55, pi. XVI, figs. 42-45 ; pi. XVII, figs. 46-50. 



1891. " Leuckarti Schmeil, p. 25. 



1891. " edax Forbes, p. 709, pi. Ill, fig. 15; pi. IV, figs. 16-19. 



1891. " Scourfeldi Brady (?) p. 10, pi. IV, figs. 1-8. 



1891. " Leuckarti Eichard, p. 230, pi. VI, fig. 20. 



1892. " " Schmeil, p. 57, pi. III. figs. 1-8. 



1893. " '\ Marsh, p. 209, pi. IV, fig. 17; pi. V, figs. 2-6. 



I have no doubt that, as stated by Schmeil, C. Leuckarti Claus and C. 

 Leuckarti Sars are identical, and that possibly by strict laws of priority 

 Clans should be given as authority for the name. Yet, as the description 

 by Claus is not only imperfect, but in many respects inaccurate and mis- 

 leading, I have preferred to retain the designation of C. Leuckarti Sars. 

 Other points in the synonomy are discussed in Schmeil '92 and Marsh '93. 



As would be expected, this species was distributed almost universally in 

 the waters examined. 



Cyclops fuscus Jurine. 

 Plate VI, figs. 5, 7 and 11. 



1820. Monoculus quadricornis fuscus Jurine, p. 47, pi. II, fig. 2. 



1841. C. signatus Koch, H 21, pi. VIII. 



l!850. " quadricornis var. c Baird, p. 203, pi. XXIV, fig. 5. 



1857. " coronatus Claus, p. 29, pi. I, fig. 5, and pi. II, figs. 1-11. 



1863. " " " p. 97, pi. II, fig. 16; pi. X, fig. 1. 



1863. " signatus Sars, p. 242. 



1863. " coronatus Lubbock, p. 199. 



1870. " " Heller, p. 71. 



1872. " " Fric, p. 218, fig. 12. 



1876. " " Hoek, p. 12. 



1878. " signatus Brady, p. 100, pi. XVII, figs. 4-12. 



1882. " ienuicomis Herrick, p. 227, pi. V, fig. 14; pi. VI, figs. 1-11,. 

 and 20. 



1884. " tenuicornis Herrick, p. 153, pi. R, fig. 16; pi. Q\ figs. 8-11,. 



and 20. 



1885. " signatus Daday, p. 208. 



1886. " " Vosseler, p. 189, pi. IV, figs. 6-10. 



1888. u fuscus Sostaric, p. 58. 

 1890. " signatus Thaliwitz, p. 79. 



1890. " " Lande, p. 33, pi. XV, figs. 1-12. 



1891. " " Brady, p. 6, pi. 2, fig. 5. 

 1891. " fuscus Richard, p. 223, pi. VI, fig. 6. 



1891. " " Schmeil, p. 22. 



1892. " " " p. 123, pi. I, figs. l-7b; pi. IV, fig. 2. 



1893. " signatus Marsh, p. 211. 



