Kolpodea.'] THE INFUSORIA. 313 



length of the body, acute like the tail, which is short. 

 The most striking features are the swollen margin of the 

 mouth, and necklace-like series of vesicles disposed along 

 the body. It feeds upon green Monads, like the preceding 

 species. Cilii are absent in Dr. Ehrenberg's figures. 

 Found amongst colonies of Vorticella, &c. Size 1-7 2nd. 



520. AMPHILEPTUS moniliger. The chain Amphileptus. 

 Body turgid, ample, white ; proboscis and tail short ; it 

 has a necklace-like gland. Found amongst duck-weed. 

 Size l-96th to l-72nd. 



521. AMPHILEPTUS viridis. The green Amphileptus. 

 Body turgid, spindle-shaped, and of a green colour; pro- 

 boscis and tail short and transparent. Found amongst 

 Lemna minor. Size l-120th to l-96th. 



522. AMPHILEPTUS fasciola (Vibrio anas fasciola et 

 intermedium. Paramecium fasciola, M.) The fillet Amphi- 

 leptus. Body white, depressed, linear, lanceolate, convex 

 above, flat beneath. When viewed from above, from ten 

 to twelve longitudinal series of delicate cilii may be seen, 

 and in the middle of the body two round glands, posterior 

 to which is a sexual vesicle, and ova granules between 

 the digestive cells. Figures 314, 315, 3J 6 represent three 

 views of this creature. Found in infusions. Size 

 1 -720th to 1-1 44th. 



523. AMPHILEPTUS meleagris (Kolpoda, M.) The 

 spotted Amphileptus. Body large, compressed, mem- 

 branous, broadly lanceolate in shape, with the crest of the 

 back denticulated. The colour of this interesting animal- 

 cule is white. On the under side there is, more or less 

 distinct, a row of eight to ten bright colourless spots (juice 

 bladders). Found with lemna. Size l-72d. 



