10 wor wh &. 
V. INFUSORIA. Simple microfcopic animalcules. 
A. With external organs. 
104. Brachionus. Body covered with a fhell and ciliate at the tip. 
105. Vorticella: Body naked and ciliate at the tip. 
106. Tricheda. Body hairy on one fide. 
107. Cercaria. Body rounded and furnifhed with a tail. 
114. Leucopera. Body every where ciliate. 
B. Without external organs, flattened. 
109. Gonium. Body angular. 
110. Colpoda. Body finuate. 
iir. Paramecium. Body oblong. 
112, Cyclidium. Body orbicular or ovate. 
C. Without external organs, round. 
108. Burfaria. Body hollow like a purfe. 
113. Vibrio. Body elongated. 
116. Enchelis. Body cylindraceous. 
115. Bacillaria. Body compofed of ftraight flraw-like fila- 
ments, varying in pofition. 
117. Volvox. Body fphzrical. 
118. Manes. Body a mere point, 
