58 J. Shephard: Victorian Rotifers. 



them, and curving inwards at their free ends. Posteriorly 

 two still longer straight spines are set so as to form a 

 broad curve between them. There is also at the posterior end, 

 overhanging the bases of the spines, a projecting plate having a 

 gentle outward curve in the centre, and then sweeping outwards 

 at each side to form two short acute points. Ventrally the 

 lorica shows the same outline excepting the anterior portion, 

 which reveals a flap-like appearance of similar arrangement to 

 that of B. lyratus. The lorica is transparent and very faintly 

 stippled. The dorsal antenna is of considerable length, and 

 the lumbar pair are very small and placed quit© at the lateral 

 edges. The long foot, corona, eye and internal organs agree 

 with those of the genus generally. The length of the lorica 

 without spines is 0.12 mm. ; over all, 0.3 mm. ; breadth, 0.1 mm. 



Family. — ^Anuraeadae. 

 Anuraea. 



■^ A. curvicornis. 

 * A. aculeata. 



A. cochlearis, Gosse. Cheltenham. 



Several other forms of this genus are known, but in view of 

 the variability of the genus they have been left for further 

 study. 



Order.— SCIRTOPODA. 

 Family. — Pedalionidae. 



Pedalion. 



P. mirum, Hudson. 



This form is quite common in the lagoons of the Yarra valley. 

 Some slight differences as compared with Hudson's description 

 have been noted, and more scrutiny is needed, but it appears 

 unlikelv that more than varietal differences will be established. 



