120 



KOTIFEEA 



[CH. 



the current by means of which the prey is captured are situated 

 inside the ring of tentacles. They take the form of a horseshoe- 

 shaped band open dorsally, the mouth being situated in the centre 



FIG. 50. 



A. Floscularia cornuta. Female magnified. From Hudson. 1. Head. 

 2. Trunk. 3. Foot. 4. Gelatinous tube in which the animal lives. 



B. F. campanulata. Male magniEed. 1. Vesicula seminalis. 2. Penis. 



of the horseshoe. This band of cilia is termed the velum : m 

 other Rotifera it is a complete circle but is folded back on itself in 

 such a way that a loop is produced which lies dorsal to the mouth. 



