23 



was smooth when extended. Considerable variation appears in the 

 different colonies in the general contour. 



Habitat: Lehen (Oct.). 



Ep is ty I is Ehrbg. 



Of this genus only one species Epistylis nynipharum was found. 



Epistylis nympharum Englm. 



Body of medium size, length 100 — 120 ,«, anterior breadth 48 ^/, 

 posterior breadth 40 (.i. 



The specimens differed so little from the type that there was no 

 hesitation in placing them here. The surface of the body in marked by 

 transverse stripes, and the macronucleus in band-shaped, arched and 

 placed longitudinally. 



Habitat: Altwasser Breisach (Dec), Elsässer Breisach iDec). 



Pyxidium Sav. Kent. 

 Of this genus only one species was found, Pyxidium cothurnoides. 



[Pyxidium cothurnoides Sav. Kent. 

 Body small, length 50—60 /<, breadth 30—33 i.i. 



Fig. 5. 



Fig. 4. 



Fig. 4. Pyxidium cothurnoides. 

 Fig. 5. Cothurniopsis vaga (after Rouxj. 



The body is oval Avith the ciliary disc minute, furnished with two 

 circlets of cilia projecting beyond the border of the peristome. Macro- 

 nucleus band-shaped and slightly curved is placed longitudinally. The 

 stalk very short less than one fourth the length of the body. 



Habitat: Attached to the carapace of Cypris or of Cyclops. Alt- 

 wasser Breisach (Dec). 



Cothurniopsis Entz, 

 Of this genus only one spicies Cothurniopsis vaga was found. 



Cothurniopsis vaga Schrank. 

 Body of medium size or large, length 115 — 140 //, breadth bl /^i. 



