Described Species of Fresh Water Crustacea. 347 



5. A. OBLONGA P. E. Miiller. Naturhistorisk Tidsskrift, 

 v, 175, pi. iii, figs. 22, 23 (1868). Birge. Trans. Wis. Acad. 

 iv, 107 (1811). Herrick. 10th Rep. Geol. Minn. 250 (1882); 

 Final Report, 97 (1884). 



Hab. Wisconsin (Birge), Minnesota (Ilerrick}. 



6. A. PARVULA. var. TUBERCULATA Herrick. Final Report, 

 100(1884). 



A. tuberculata Kurz. Dodekas neuer Cladoceren, 51 ; t. ii, 

 fig. 3 (1874). 



Halt. Massachusetts (Herrick). 



7. A. PORRECTA Birge. Trans. Wis. Acad. iv, 105 (1877)., 

 Herrick. Final Report, 99 (1884). 



Hal. Massachusetts and Wisconsin (Birge}. 



8. A. QUADRA ^GULARIS Baird. Ann. and Mag. Nat. Hist, 

 ii, 92, t. 3, figs. 9-11 (1843); British Entomostraca, 131, t. xvi, 

 fig. 4 (1859). Herrick. Final Report, 97 (1884). 



Lynceus quadrangularis Miiller. Entomostraca, 72, t. ix, 

 figs. 1-3. Herrick. 7th Rep. Geol. Minn. 107 (1879). 

 Hob. Minnesota (Ilerrick}. 



9. A. SA^GursTEA P. E. Miiller. Naturhistorisk Tidsskrift, 

 v, 177 (1868). Herrick. Final Report, 95 (1884). 



Hob. Minnesota (Ilerrick}. 



10. A. SPINIFERA Schodler. Neue Beitrage zur Naturge- 

 schichte der Cladoceren, 18, pi. i, figs, 17-22 (1863). Birge. 

 Trans. Wis. Acad. iv, 107 (1877). Herrick. Final Report, 99 



(1884). 



Hal Massachusetts and Wisconsin (Birge). 



IX. ALONELLA SARS. 



1. A. EXCISA Kurz. Dodekas neuer Cladoceren, 59 (1874). 

 -Herrick. Final Report, 103 (1884). 



?Pleuroxus insculptus Birge. Trans. Wis. Acad. iv, 95 

 (1877). 



Lijnceus excisus Fischer. 

 Hal). Massachusetts and Wisconsin? (Birge), Minnesota (Ilerrick). 



2. A. PULCHBLLA Herrick. Final Report, 103 (1884). 

 Hab. Minnesota (Herrick). 



