FAUNA OF TEE CHESS AND GADE. 211 



some time, these various movements were repeated in varied 

 succession. 



Of the many species of Eotifers examined, S. tremula, 

 especially as exemplified in the specimen just described, appears 

 to be the most active. As long as that specimen was disporting 

 itself in the way described, it was practically impossible to make 

 out its characteristic features. A little narcotizing solution, 

 however, soon brought it almost to rest, when its small foot and 

 minute toes, small auricles, and the almost flat base of its 

 conical body were clearly discernible. 



10. Synchceta pectinata, Ehren. — Most of the specimens of this 

 Eotifer, entered in my notes, were obtained from Chipperfield 



Fig. 7. 



Fig. 8. 



Common Pool, which has a very interesting rotiferan fauna. 

 From one side of this pool a narrow plank-walk extends towards 

 its centre, the depth of water near the end of the plank being 

 less than four feet. A dredging net, moved about for some time 

 in the water, from the end of the plank, usually brings up one 

 or more specimens of S. pectinata, but dredging during winter 

 and spring has been most successful. 



Several specimens of this beautiful and active Rotifer, 

 remarkable for their whiteness and transparency, were obtained 

 in the way described, on May 1st, 1913. One specimen, which 

 was moving about with more energy than the rest, was examined 

 carefully. It was not less that g 1 ^ in. long, and swam forward 

 rapidly, then doubled on itself, and swam rapidly in the opposite 

 direction, these movements being repeated time after time. 

 Little more than the curved sides of its conoidal body and its 



