243 



often containing a slight amount of adhering matter, often containing several 

 eggs, which, however, are not so elongate as the figures represent those of 

 Brachiatus; the long narrow foot and the long non-retractile antenna 1 agree well 

 with the type. I am pretty confident that it is Brachiatus, yet I am surprised to 

 find so many of them, or any of them, in a surface tow, as it is evidently norm- 

 ally anchored ; perhaps they were attached to floating alga? which apparently are 

 not uncommon in the lake. H. and G., I, 83. 



3. Pkilodiim megalotrocha Ehrenberg. Numerous. I have often taken it 

 at a distance from land, particularly in shallow lakes or among floating alga:. 

 H. &G., I, 101. 



More than one species of Rotifer which could not by any means be identified 

 were present. 



4. Sacculus viridis Gosse. Rare. H. and G., I, 124. 



5. Polyarthra platyptera Ehrenberg. Many seen. The serrations on the 

 edges of the broad plates are coarse and more distant than in the tyjje. H. and 

 G., II, 3. 



6. Dinocharis pocillum Ehrenberg. One individual. It is a bottom feeding 

 species and rarely occurs in a surface tow. H. and G., II, 71. 



7. Dinocharis collinsii Gosse. One. Bottom feeding species. It has not 

 been observed in this country before. No species exceeds it in beauty. I could 

 not make out the pair of spines on the foot and the edge of the lorica appears to 

 be set with a row of small spines, rather than being serrate as described and 

 figured. H. and G., II, 72. 



8. Anurcea cochlearis Gosse. Exceedingly abundant. Our form differs 

 slightly from Gosse's figure since the mesal ridge of the lorica does not extend 

 straight from end to end, but has a decided angle at each pair of facets, the an- 

 terior median one is not divided. H. and G., II, 124. 



9. Notholca longispina Kellicott. Not rare. This rotiferou was first known 

 in the water supplies of cities along the Great Lakes. Soon after it was described 

 in 1879, it was found in Olton Reservoir, Eng., and then by Imhof in the Swiss 

 Lakes. More recently it has been found in lakes of America. Mr. Levic reports 

 finding the eye spot double, or so far separated as to be regarded as two eyes. I 

 have seen several in these collections with the same peculiarity. 



