MONAS. INFUSORIA. 451 



In stagnant waters,, and discoverable by the naked eye. -Mull. 

 Inf. pi. 3. fig. 12, 13. 



Gen. 10. MONAS, Lam. 



Body extremely minute, simple, transparent, in the form of a 

 point. 



The Monads are the most minute and the most simple of all known animals ; and 

 their animal nature is only inferred from possessing the power of locomotion. They 

 are found in stagnant waters, or water impregnated with vegetable matter, when the 

 weather is warm. 



M. pulvisculus, Lam. Hyaline, with the margin greenish. In the 

 water of marshes. Mull. Inf. pi. 1. fig. 5, 6. 



M. punctnm, Lam. Black, subcylindrical. Found in infusion of 

 the pulp of the pear. Mull. Inf. pi. 1. fig. 4. 



M. termo, Lam. Gelatinous ; body extremely minute. Found in 

 vegetable and animal infusions Mull. Inf. pi. 1, fig. 1. 

 Perhaps the smallest of animated beings. The figure of Muller, representing a 



drop of water magnified, seems to contain an incalculable number of these minute 



beings. 



