[Proc. Roi. Soc. Victoria, 24 (N.S.), Pt. I., 1911.] 



Art hi. — A List of Victorian Rotifers, with Description 

 of Tivo New Species and the Males of Two 

 Species. 



By J. 8HEPHAKD. 



(With Plates XXI.-XXII.). 

 [Read 20th April, 1911.] 



In 1891, under the title of '' Notes on Victorian Rotifers/'^ 

 Mr. H. H. Anderson and myself gaA-e a list of species of Rotifera 

 identified up to that date, including several forms described 

 as new. Since that time no further enumeration has been pub- 

 lished, although several new species have been recorded. An 

 extended list was submitted by myself at the last Melbourne 

 meeting of the Australasian Association for the Advancement 

 of Science, and occupied the attention of the biological section 

 for a few minutes, but it was not published, and therefoTe 

 remained unavailable to students of this class. Having in the 

 course of intermittent observations added considerably to the 

 original list, it appears desirable to publis'h a fresh enumera- 

 tion, more particularly as it can be supplemented by the 

 inclusion of two new species of Brachionus, and the description 

 of the males of two species of Lacinularia. As much of the 

 literature of the subject is unprocurable here, I have availed 

 myself of the kind services of Mr. Rousselet, the well-known 

 authority on the class, and submitted to him copies of my 

 drawings of the two unidentifiable forms, and his opinion is that 

 they are certainly new. For the advantage of having all the 

 known Rotifers of Vfctoria in one record, those mentioned 

 previously are included, but are merely named, an asterisk 

 being used to indicate them, excepting in a few cases where 

 some further remark seemed advisable. The full list now 

 given, as students of the group Avill know, only partially 

 represents the forms existing in Victoria. Some sustained 

 work would speedily double or treble the total number. 



1 Proc. Roy. Soc. Vict., vol. iv., 1892, pp. 69 -SO. 



