NOTES UPON THE CLADOCERA, COPEPODA, OSTRA- 
CODA AND ROTIFERA OF CINCINNATI, WITH 
DESCRIPTIONS OF NEW SPECIES. 
By C. H. Turner. 
[Plates I-IL] 
This paper does not pretend to be a monograph of the Rotifera 
and Micro-crustacea of this locality. It is but the embodiment of the 
results of a three months’ sludy of the Micro-crustacea and the Ro- 
tifera of Cincinnati, Ohio, and the neighboring country. It is not 
probable that all the species of this locality have been encountered. 
No doubt many interesting forms await the discriminating gaze of the 
patient investigator. Yet, it is hoped that the present paper will give 
a fair idea of the micro-carcinological and of the rotiferon fauna of 
this neighborhood. 
In a paper of such modest pretentions, it is not deemed neces- 
sary to re-describe well known species. Nor is it thought wise to give 
the complete bibliography of each species. Therefore, the author 
has contented himself with appending to each known species only 
such facts as may prove of interest to other workers in this line; and 
to referring to one or two standard works, in which a complete de- 
scription will be found. 
In this connection, I gratefully express my indebtedness to Pro- 
fessor C. L. Herrick, who kindly placed at my service his extensive 
collection of papers upon this subject. Without such literary aid 
this paper would not have been attempted. 
PART I, ROTIFERA. 
The arrangement of this portion of this paper is the same as that 
followed by Messrs. Hudson and Gosse, in their monograph upon 
‘'The Rotifera, or Wheel-animalcules, Both British and Foreign.” 
London: Longmans, Green & Co., 1889. 
