Enchelia.] THE INFUSORIA. 285 



446. LACRYMARIA gutta. The drop-like Lacrymaria 

 has a smooth and nearly spherical body, with a very long 

 neck. Found with conferva. Size 1-1 150th; including 

 neck, l-210th. 



447. LACRYMARIA rugosa. The wrinkled Lacrymaria. 

 The body of this animalcule is nearly globular, and 

 wrinkled ; the neck is of a medium length, and the ova 

 green. In swimming it often revolves on its longitudinal 

 axis; neither cilia nor an enlargement is observable near the 

 mouth. Size l-570th; including neck, l-288th. 



Genus CVI. LEUCOPHRYS. 



This interesting genus is characterized by having vibratile 

 cilii upon the whole surface of their body, and a mouth 

 obliquely terminal, : without teeth. From the oblique 

 position of the mouth the upper part appears like a lip. 

 The cilii, which cover the body, are short and disposed in 

 rows ; those around the mouth are longer, and produce 

 very powerful currents. In swimming all the species re- 

 volve upon the longer axis. A serpentine alimentary canal 

 (with numerous grape-like stomach-cells, more than fifty), 

 terminating at the opposite extremity to the mouth, is 

 present. In three species, numerous ova granules are ob- 

 served, and in some, one or two globular glands and simple 

 contractile bladders. Transverse and longitudinal self- 

 division has been observed. 



448. LEUCOPHRYS patula (Trichoda patula, M.) The 

 gaping-mouthed Leucophrys. This creature has an oval, 

 campanulate, turgid body, as shewn injigiires 27 '6, 7. It 

 is sometimes quite pellucid, at others of a whitish colour. 

 The mouth is ample and gaping. The stomach-cells are 

 very large, and fill themselves in an irregular manner; when 



