116 NATURAL HISTORY 



and stroiii^ly resembles a species of the genus Volxox, but 

 from its bright scintillating appearance, arising most 

 likely from the motion of cilia, it is distinguished from it. 

 Found among the letnna minor in December. 



213. Leucophrys vesiculifera . This animalcule is 

 more globular than the last species, and very diaphanous; 

 the middle often assumes a blue tint, and its interior is 

 marked by a number of pellucid sacs ; the body, accord- 

 ing to Spallanzani, is covered with hair. Found in vege- 

 table infusions. 



214. Leucophrys globiilifera. This is probably the 

 same animalcule as the last, at a different stage of its 

 growth : its form is similar to that, but the cilia which 

 cover the body are more distinct : only two or three 

 sacs are visible. Found among the lemna minor, 



215. Leucophrys pustulata. — This animalcule is more 

 elongated than the two last : the lower end abruptly 

 truncated ; it is of a white colour, granulated, and covered 

 with erect cilia. 



216. Leucophrys turhinata. — This species resembles 

 in form an acorn without the husk, the mouth being at 

 the base of the nut ; the body is slightly contracted about 

 the middle, and covered with hair. 



217* Leucophrys acuta. The pointed Leucophrys, — 

 This animalcule is capable of contracting its body into a 

 globular mass, as shewn at figure 132 : it is of a yellow 

 colour, covered with hair, and has sometimes a small 

 l)rojection on one side, as shewn in figure 133. Found 

 in sea water. 



