Microscopical Essays, 



5 6 9 



and then withdrawing them in an inftant. It is found in pure 

 water, and in infufions of vegetables. 



17,3. Trichoda Cometa. Fig, 46 and 47, Plate XXV. 



Trichoda fphserica, antice crinita, globulo appendente. Sphe- 

 rical, the fore-part hairy, with an appendant globule. 



It is a pellucid globule, replete with bright interlines, the fore- 

 part furnilhed with hairs, the hind-part with a pellucid appendant 

 globule, 



174. Trichoda Granata. Fig. 48, Plate XXV. 



Trichoda fphaerica, centro opaco, peripheria crinata. Sphe- 

 rical, with an opake center, the periphery hairy. 



It refembles the trichoda grandinella and trichoda cometa. It 

 has a darkifh nucleus in the center ; it's interlines are impercepti- 

 ble ; fhort hairs on the edge. 



175. Trichoda Trochirs. 



Trichoda fubpiriformis, pellucida, antice utrinque crinita. 

 Trichoda fomewhat of a pear-fhape, pellucid, each fide of the 

 fore-part diftinguifhed by a little bunch of hairs. 



3 2 



176, Tri- 



