Oxytrichina'\ THE INFUSORIA. 323 



cluster of iincini; no setfe. Dr. Ehrenberg states the 

 absence of the three posterior setae in this and the follow- 

 ing species is remarkable, as the others possess them. 

 Found amongst conferva. Size 1- 280th. 



550. Stylonychia lanceolata. The lancet Stylonychia. 

 — Body pale greenish, lanceolate in shape, extremities 

 equally obtuse, under side flat ; it has uncini in a cluster 

 near the mouth, but no styles. Ehrenberg saw in one 

 specimen a simple contractile vesicle on the left side, below 

 the mouth, and near it a large oval gland. Green Monads 

 and Bacillaria may be seen in this voracious animal, 

 surrounded with colourless stomach juice. Fig. 343 

 represents an under view, and Jig. 344 the side view of 

 another. Found amongst conferva. Size 1-1 44th to 

 l-120th. 



Y 2 



