6~20 



Microscopical Essays. 



314. Vorticel la Ampulla. Fig. 4 and 5, Plate XXVI. A. 



Vorticella folliculo ampulaceo, pellucido, capite bilobo. This 

 vorticella is contained in a pellucid bottle-fhaped bag, the head 

 of it is divided into two lobes. 



Little more need be faid to enable the reader to know this ani- 

 malculum, if he mould meet with it, than to obferve that the 

 bag is much in the fhape of the common water-bottle ; that the 

 animalculum is fometimes to be obferved at the bottom of it* 

 fometimes nearly filling it. 



315. Vorticella Folliculata. 



Vorticella oblonga, folliculo cylindraceo hyalino. Oblong 

 vorticella, in a bright cylindrical bag. 



This animalculum is gelatinous and cylindrical; when at it's 

 greateft extenfion, the bafe appears attenuated, and the apex 

 truncated. 



316. Vorticella Larva. 



Vorticella cylindrica, apertura lunata, fpinis caudalibus binis. 

 Cylindrical vorticella, the aperture fomewhat in the fhape of a 

 crefcent, two fmall thorny points projecting from the hinder-part. 



The head, the trunk, and the tail may be eafily diftinguifhed 

 from each other. It is of a clay-colour, the aperture ciliated ; 



agio- 



