294 DESCRIPTION OF [Polygastrica. 



This creature, which is represented in the engraving, Jig. 

 290, has an ample ovate body, broadly open, in a campa- 

 nulate form anteriorly ; proboscis short, in the form of a 

 beak. The colour is white. In no infusorial animalcule 

 is the alimentary canal so easily seen as in this, as also the 

 large mouth and contractile vesicle laying over the lower 

 part of the alimentary canal; numerous small digestive 

 cells and ova granules appear in every part. Found in 

 stagnant bog water. Size l-72nd. 



Genus CXI. LOXODES. The lipped Animalcules have their 

 bodies covered with cilii, a simple mouth devoid of teeth, 

 upper lip continuous and broad, hatchet-shaped; the 

 organs of locomotion are the rows of cilii and the long ones 

 near the mouth. Coloured food has demonstrated the 

 polygastric structure of three species, and in one its ex- 

 pulsion has been observed. In L. bursaria propagating 

 apparatus of a double kind, viz. ova granules, an oval gland, 

 and two contractile globular vesicles, have been seen, and 

 in two others the granules only ; self-division transverse. 



472. LOXODES rostrum (Kolpoda rostrum, M.) The 

 beaked Loxodes. Body white, lanceolate, slightly curved 

 in the form of an S, in consequence of the lip being a little 

 uncinated. Ehrenberg states that he has very often seen 

 large Naviculae and Synedrae within this creature, but that 

 it would not feed on coloured food. The cilii are very 

 delicate. Fig. 29 1 represents an animalcule which has fed 

 upon Bacillaria; Jig. 292, another creeping along conferva; 

 and Jig. 293 a specimen undergoing transverse self-division. 

 Found amongst conferva. Size 1-1 44th to l-60th; ova 

 granules less than 1 -24000th. 



473. LOXODES cithara (Tiiclwda aurantiu, M.) The 



