Microscopical Essays. 



176. Trichoda Gyrinus. 



Trichoda ovalis teres cryflallina, antice crinita. Oval, round, 

 cryftalline trichoda, the front hairy. 



It is one of the fmalieft among the trichoda, the body fmootb 

 and free from hairs, except at the fore-part, where there are a* 

 few. Found in fait water. 



177. Trichoda Sol. Fig. 65 and 66, Plate XXV. 



Trichoda giobularis, undique radiata. Globular trichoda^ 

 every-whcre radiated. 



This fplendid creature conflitutes a new genus, but as we know 

 of no more of the fame kind, it is introduced here.. It is a little 

 cryftalline round corpufele, the upper part convex; it is befefc 

 with innumerable diverging rays, which are longer than the 

 body, proceeding from every part of it's furface : in the infide are 

 fimilar molecules. The body contracts and dilates itfelf, the ani-» 

 malculum remaining confined to the fame fpot. It, was found in: 

 water in which there were other infuforia, and which had been 

 kept for three weeks. It propagates by divifion, and is repre- 

 fented as dividing in Fig. 66. .' 



278. Trichoda Solaris., 



Trichoda fphaeroidea, peripheria crinita. Spheroidal trichoda^ 

 with a few hairs round the circumference^ 



The 



