686 



PROTOZOOLOGY 



Family 4 Epistylidae Kent 

 Genus Epistylis Ehrenberg. Inverted bell-form ; individuals usually 

 on dichotomous non-contractile stalk, forming large colonies; at- 

 tached to fresh or salt water animals. Numerous species. 



Fig. 322. a, Glossatella tintinnabulum, X610 (Penard); b, Ellobiophrya 

 donacis, X900 (Chatton and Lwoff); c, Epistylis plicatilis, X200 (Stein); 

 d, E. fugitans, X260 (Kellicott); e, f, E. cambari (e, Xl40; f, X340) 

 (Kellicott); g, Rhabdostyla vernalis, X320 (Stokes); h, Opisthostyla an- 

 nulata, X440 (Stokes); i, Campanella umbellaria, X180 (Schroder); 

 j, Pyxidium vernale, X240 (Stokes); k, P. urceolatum, Xl40 (Stokes); 

 1, Opercularia stenostoma, Xl40 (d'Udekem); m, n, 0. plicatilis (m, X40; 

 n, X60) (Stokes). 



E. plicatilis E. (Fig. 322, c). 90-100^ long; colony often up to 3 

 mm. in height; fresh water. 



