Art. III. — A New Rotifer Lacinularia striolata, with 

 Note on L. i^eduncidata. 



By J. SHEPHARD. 



(With Plates III.,. IV., V.) 

 [Eead 13tli April, 1899.] 



The rotifer forming the subject of the first part of this paper 

 has been well known in Victoria for a number of years, but has 

 always been regarded by me as Z. pedimculata mentioned by 

 Dr. Hudson in the supplement to "The Rotifera " (p. 7). 

 No figure accompanies the very brief description there given. 

 Meeting with this form in very large numbers in a shallow pond 

 near the Glen Eira Road, Caultield, I was led to study it with 

 a view to place on record some figures and further information 

 with regard to it. While engaged in this work another similar 

 form appeared in a cultivation from dried mud gathered at 

 Cheltenham, but diflPering from the first and better known 

 rotifer in several particulars. 



Visiting Mr. Thos. Whitelegge, of the Australian Museum, 

 Sydney, I mentioned the work I was engaged on, and he very 

 kindly lent me his drawings of the rotifer he sent to Dr. Hudson, 

 who named it from the spirit specimens Lacimilaria pedunculata. 

 From a comparison of these sketches with my own drawings and 

 specimens I have arrived at the conclusion that the form first 

 seen by Mr. "Whitelegge, and referred to by him in the short 

 descriptive paragraph quoted by Dr. Hudson, was certainly not 

 the better known form, but more probably identical with the 

 one from Cheltenham. 



Lacinularia striolata, n. sp. 



The animals are found in clusters varying in size from 5 mm. 

 diameter to mere points barely visible to the naked eye. A 

 peduncle sometimes as much as 10 to 12 mm. long anchors the 

 colony to the stem of a submerged plant. The colour varies 



