No. 482] SOUTH AMERICAN ROTIFERS 



101 



to any other species. Those which approach it in general form 

 and dorsal wrinkling have larger heads with separated discs. 



Not abundant, about a dozen examples seen. 



Rotifer longirostris (Janson) ('93).— Several examples of the type 

 were found, but none of the Indian varieties occurred. 



Adineta graciUs Janson ('93).— Not plentiful. 



A. vaga Davis ('73).— Rare. 



LITERATURE 



Brycf, D. 



'92. On the Macrotrachelous Callidinae. Journ. Quekett Micr. Club, 

 ser. 2, vol. 5, p. 15. 

 Bryce, D. 



'94. Further Notes on Macrotrachelous Callidinje. Journ. Quekett 

 Micr. Club, ser. 2, vol. 5, p. 436. 

 Davis, H. 



'73. A New Callidina. Month. Micr. Journ., p. 201. 



DUJARDIN, F. 



'41. Zoophytes Infusoires, p. 658. Paris. 

 Janson, O. 



'93. Rotatorien-Familie der Philodinaeen, Marburg. 

 Milne, W. 



'85-'86. Defectiveness of the Eye-spot, etc. Proc. Phil. Soc. Glasgow, 

 vol. 17, p. 134. 

 Murray, J. 



:05. A New Family, etc. Trans. Roy. Soc. Edinb., vol. 41, p. 367. 

 Thompson, P. G. 



'92. Moss-haunting Rotifers. Science Gossip, p. 56. 



