66 
BULLETIN OF THE LABORATORIES 
Family Anuraeadae. 
XV. Genus ^Vnuraea, Gosse, nec Ehrenberg. 
Sp. 27. Anuraea tecta, Gosse. 
Anuraea tecta, Hudson and Gosse, The Rotifera or 
Wheel-animalcules, Vol. II, p. 123; pi. XXIX, fig. 10. 
During the latter part of summer a single individual of this species 
was encountered in one of our shallow, weedy ponds. 
Sp. 28. Anuraea coehlearis, Gosse. 
[Plate I; Fig. 7.] 
Anuraea coehlearis, Hudson and Gosse, the Rotifera 
or Wheel-animalcules; Vol. H, p. 124; pi. XXIX, fig. 7. 
Myriads of this species have been encountered in one of our clear 
ponds. Here, as in England, they are much preyed upon by 
Asplanchnas. 
PART II. CRUSTACEA. 
The arrangement adopted in this portion of this paper is the same 
as that followed by Professor C. L. Herrick, in his ‘‘Final Report 
Report upon the Crustacea of Minnesota.” 
ORDER CLADOCERA. 
Family SIDIDAE. 
I. Genus Sida, Straus. 
Sp. I. Sida crystallina, Mueller. 
Sida crystallina, C. L. Herrick, Final Report on Min- 
nesota Crustacea, p. 20. 
This beautiful species appears to be quite rare in this locality. I 
have seen it but once. On the 17th of April, 1891, several were 
found among the Sagittaria in one of our canal basins. 
Family DAPHNIDAE. 
H. Genus Moina, Baird. 
Sp. 2. Moina paradojca, Weismann. 
Moina paradoxa, C. L. Herrick, Final Report on Min- 
nesota Crustacea, p. 34; pi. A, figs: I, 3, 6, 7, 9. 
During the latter part of summer and the early part of fall, this 
species was very abundant in several of the stagnant pools that 
