Described Species of Fresh Water Crustacea. 345 

 III. OAMPTOCEROUS BAIRD. 



1. C. MACRURUS Baird. Ann. and Mag. Nat. Hist, ii, 91, 

 t. 3, figs. 5, 6 (1843); British Entomostraca, 128, t. xvi, fig. 9 

 (1850). Birge. Trans. Wis. Acad. iv, 109 (1811). -Herrick. 

 7th Rep. GeoL Minn. 107 (1879); 10th Rep. Geol. Minn. 249 

 (1882); Final Report, 84 (1884). 



Lynceus macrurus Miiller. Entomostraca, 77, t. 10, figs. 

 1-3 (1785). 



Hal). Massachusetts, Wisconsin, and Lake Michigan (Birge), Min- 

 nesota (Ilerrick). 



2. C. ROTUKDUS Herrick. 10th Rep. Geol. Minn. 249 

 (1882); Final Report, 84 (1884). 



Ilab. Minnesota (Ilerrick). 



IV. ALONOPSIS SARS. 



1. A. LATISSIMA Kurz. Dodekas neuer Cladoceren, 40, t. 

 ii, figs. 13-15 (1874). Herrick. Final Report, 86 (1884). 



Ilab. Minnesota (Ilerrick). 



2. A. MEDIA Birge. Trans. Wis. Acad. iv, 108 (1877). 

 Herrick. Final Report, 86 (1884). 



Ilab. Minnesota (Ilerrick). 



V. LEYDIGIA KURZ. 



1. L. ACANTHOCERCOIDES Kurz. Dodekas neuer Cladoce- 

 ren, 53 (1874). Herrick. Final Report, 89 (1884). 



L. quadrangularis Herrick. 10th Rep. Geol. Minn. 248 

 (1882). 



Lynceus acanthocercoides Fischer. Bull. Soc. Nat. de Mos- 

 cou, 1854, 431, t. iii, figs. 21-25. 

 Hab. Minnesota (Herrick). 



2. L. QUADRAXGULARIS Kurz. Dodekas neuer Cladoceren, 

 52, t. ii, fig. 1 (1874). Herrick. Final Report, 88 (1884). 



Hab. Alabama (Ilerrick). 



