NOTES ON CLADOCERA. 



By EDWARB A. BIRGE, Ph. B. 



During the past three years I have collected Cladocera at inter- 

 vals. The group has been little studied in this country, though 

 thoroughly worked up in Europa I have found several new 

 forms, including one new genus, and now publish a synopsis of 

 the work hitherto done by me. 



I give only the more important references under the synonymy 

 The works most useful for reference on this group are : 



O. F. Muller, Zoologiae Danicse Prodromus. 1776. 



" Entonaostraca. 1785. 



Jurine, Hist d. Monocles qui se trouvent aux environs de Geneve. 1820. 

 Lieven, Branchiopoden der Danziger Gegend. 1818. 

 Baird, Natural History of the British Entromostraca. 1850. 

 Fi cher, Ueber die Crustaceen aus den Ordtmngen der Branch, und Ento- 

 mos. 1851. 

 " Erganzungen, Berichtigungen und Fortsetzung zu der Abhl. u. d. in 

 der Urag. von St. Petersburg vorkommenden Crustaceen. 1854. 

 Liljeborg, De Crustaceis ex ordinibus tribus; Cladocera, etc. 1853. 

 Koch, Deutschlands Crustaceen, etc. 1835. 



Schodler, Neuc Beitrage zur Naturgeschichte der Cladoceren. 1863. 

 " Die Cladoceren des frische n Hafts. 1863. 

 " Zur Naturgeschichte der Daphniden. 1877. 

 Leydig, Natu r geschichte der Daphniden. 1860. 

 P. E. Muller, Daomarks Cladocera, 1868.. 

 Kuiz, Dodesasneuer Cladoceren. 1874. 



Weissman is now contributing some very valuable papers on structure and 

 physiology to the Zeitschrift fur Wissenschaftliche Zoologie. 



In my notes, all the above papers are cited by the name of the 

 ^uthor, or, if necessary, by adding to his name a single word. 



