CYCLOPIDiE AND CALANIDiE OF MICHIGAN LAKES. 15 



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Cyclops PuiiCjrasiitis Kucli.- — - — 



Plate VII, fig. 14. 



' 1857.£U" bicuspidatus Claus, p. 209, pi. XI, fis:s. 6 and 7. 



« 1863. " " " p. 101. 



1863. " pulchellus Sars, p. 246. 



V1870. " bicuspidatus Heller, p. 71. 



I 1872. " " Fric, p. 221. fig. 6. 



1876. " " Hoek, p. 17, pi. I, figs. 7-11. 



; 1880. " pulchellus Rehberg, p. 543. 



1880. " helgolandicus Rehberg ('80a), p. 64, pi. IV, fig. 5. 



1882. " Thomasi Forbes, p. 649, pi. IX, figs. 10, 11, and 16. 



1883. " peciinatus Herrick, p. 499, pi. VII, figs. 25, 28. 



1883. " Thomasi Cragin, p. 13, pi. Ill, figs. 1-13. 



1884. " " Herrick, p. 151, pi. U, figs. 4, 5, 7, and 8. 



1885. " pulchellus Daday, p. 220. 



1886. " " Vosseler, p. 194, pi. V, figs. 19-28. 



1890. " " Lande, p. 50, pi. XXI, figs. 146-155. 



1891. " Thomasi Forbes, p. 707, pi. II, fig. 8. 

 1891. " bicuspidatus Brady, p. 13, pi. V, figs 1-5. 

 1891. " Thomasi Brady, p. 14, pi. VI, figs. 1-4. 

 1891. " bicuspidatus Schmeil, p. 27. 



1891. " " Richard, p. 229, pi. VI, fig. 6. 



1892. " " Schmeil, p. 75, pi. II, figs. 1-3. 



1893. " Thomasi Forbes, p. 249, pi. XXXIX, figs. 9-12, pi. XL, fig. 13. 

 1893. " pulchellus Marsh, p. 207, pi. IV, figs. 18-19. 



C. pulchellus is the common Qyclops of the Great Lakes. It occurs 

 sometimes in smaller bodies of water, but in the collections from Michi- 

 gan I have not found it from any of the small lakes except Pine Lake and 

 Round Lake. 



According to Forbes ('82 b) C. pulchellus and. the Diaptomi form the 

 greater part of the food of the young white fish. 



Cyclops parous Herrick. 



1882. C. parens Herrick, p. 229, pi. VI, figs. 12-15. 



1884. " " < p. 148, pi. R, fig. 22. 



1893. " " Marsh, p. 208, pi. IV, fig. 16, pi. V, fig. 1. 



I have found C. parcus only in the collections from Lake St. Clair. 



Cyclops leuckarti Sars. 

 Plate VII, fig. 15. 



1863. C. Leuckarti Sars, p. 239. 



1874. " simplex Poggenpol, p. 70, pi. XV, figs. 1-3. 



1875. " tenuicornis Uljanin, p. 30, pi. IX, figs. 12 and 13. 



1876. " Leeuwenhoekii Hoek, p. 19, pi. Ill, figs. 1-12. 

 1880. " simplex Rehberg, p. 542. 



1884. " " Herrick, p. 150. 



