Microscopical Essays. 



487 



the younger branches were furnifhed with them. It was found in 

 river water in November 1779 and 1780. 



IV. E N C H E L I S. 



Vermis inconfpicuus, fimplieifTimus, cylindraceus. An invi- 

 fible, iimple, cylindric worm. 



25. Enchelis Viridis. 



Enchelis fubcylindrica, antice oblique truncata. Green enche- 

 lis, of a fub cylindric figure, the fore-part truncated. 



This is an opake, green, fubcylindric animalculum, with an 

 obtufe tail, the fore-part terminating in an acute truncated angle ; 

 the interlines obfcure and indiftincl. 



It is continually varying in it's motion, turning from right 

 to left. 



26. Enchelis Pun&ifera. 



Enchelis viridis, fubcylindracea, antice obtufa, poflice acumi- 

 nata, Fig. 8, Plate XXV. Green enchelis, fubcylindric, the 

 fore-part obtufe, the hinder-part pointed. 



It is an opake animalculum, of a green colour ; there is a fmall 

 pellucid fpot in the fore-part a, in which two black points may 

 be feen ; a kind of double band, c c, croffes the middle of the 

 body. The hinder part is pellucid and pointed ; an incifion 



is 



