574 



Microscopical Essays, 



188. Trichoda Nigra. 



Trichoda ovalis compreffa, antice latior crinita. Oval com- 

 preffed trichoda, the fore-part broader and hairy. 



The body is opake, when in violent motion it is black, when 

 at reft one fide is pellucid ; the middle of the fore- part is fur- 

 nifhed with little moveable hairs. It was found in fait water. 



189, Trichoda Pubes. Fig. 61 and 62. 



Trichoda ovatr-oblonga gibba, antce depreffa. An egg- 

 fhaped oblong bunch, fore-part depreffed. 



An animalculum with a bunch above the hind-part, marked 

 with black fpots, depreffed towards the top, a little folded, and 

 fomewhat convex underneath ; at leaft this is if s appearance 

 when in motion. Very minute hairs occupy the apex, but 

 which are with difficulty feen, except when it is in the agonies of 

 death, it then ftretches them out with all it's might from an arch- 

 ed chink at the top, moving them vehemently, and endeavouring 

 as it were to draw in the laft drop of water. Is found in water 

 where the duck-weed grows, moftly in December, b the hairs, 

 c the black globules, a the projeaing bunch. 



igo. Trichoda FIoccus. 



Trichoda membranacea, antice fubcomca, papillis tribus crini- 

 tis. Membranaceous trichoda, the fore-part rather conical, three 

 fmall papillae projed from the bafe, which are fet with hairs. 



6 Tri- 



