218 Marsh — Cyclopidm and Calanidce of Wisconsin. 



SECOND AND THIRD FEET. 



Outer br. ex. 3 spines. Inner br. ex. 1 seta. 



ap. 1 spine, 1 seta. ap. 1 spine, 1 seta, 



in. 4 seta?.. in. 4 setae. 



FOURTH FEET. 



Outer br. ex. 2 spines. Inner br. ex. 1 seta. 



ap. 1 spine, 1 seta. ap. 2 spines, 



in. 4 setae. in. 3 setae. 



The last cephalothoracic segment is expanded laterally, and 

 bears upon each side a long seta. The fifth feet are attached to 

 these expansions, are one-jointed, linear, and each bears at the 

 tip a single seta. 



Females average a little more than ^ mm. in length. The 

 color in all the specimens I have seen has been purplish. My 

 specimens agree very well with the descriptions of Sars and 

 Schmeil, the only marked difference being in the length of the 

 caudal setae. More complete descriptions of the European form 

 may show other differences, but so far as the descriptions go, 

 they apply very well to our form. 



G. bicolor occurs in stagnant pools, and is somewhat rare. 



Cyclops fimbriatus Fischer. 

 Plate VI, figs. 8 and 9. 



1785. C. crassicornis Mueller (1), p. 113, pi. XVIII, figs. 15-17. 

 1853. " fimbriatus Fischer (5), p. 94, pi. Ill, figs. 19-28 



and 30. 

 1863. " crassicornis Sars (11), p. 47; 

 1870. " gredleri Heller (12), p. 8, pi. 1, figs. 3 and 4. 

 1872. " pauper Fric (13), p. 223, fig. 20. 

 1875. " crassicornis Uljanin (15), p. 39, pi. VIII, figs. 9-16; 



pi. XII, fig. 1. 

 1878. '* " Brady (18), p. 118, pi. XXIII, figs. 1-6. 



1880. ' poppei Rehberg (19), p. 550, pi. VI, figs. 9-11. 

 1880. " fimbriatus Rehberg (19), p. 548, pi. VI, figs. 7 and 8. 

 1882. " crassicornis Herrick (23), p. 232, pi. IV, figs. 9-14. 



