Microscopical Essays. 603 



with two little horns, erected from an obfcure mafs ; with thefe it 

 agitates the water, forming a little whirlpool. The hind-part is 

 ciliated, and furnifhed with two briftles, that ftretch out beyond, 

 the margin, a the horns, b the fore-part ciliated, c the hind- 

 part, d projecting briftles. 



271. Kerona Lepus. 



Kerona ovata, apice crinito, bafi fetofa. Egg-fhaped, the 

 fore-part hairy, the bafe furnifhed with briftles. 



The body is egg-fhaped, compreffed, pellucid, crowned with 

 Ihort waving hairs, the bafe terminating with briftles. 



272. Kerona Silurus. 



' Kerona oblonga, antice & poftice crinita, dorfo ciliato. Ob- 

 long, the fore and hind-part hairy, the back ciliated. 



An oval fmooth animalculum, fomething crooked and opake, 

 a fafcicle of vibrating hair on the forepart; the hind-part, or 

 fharp tail, furnifhed with unequal moveable rows of hairs, the 

 back is alfo ciliated ; thefe hairs produce a rotatory motion, in 

 the infide are fome unequal, lucid, opake points. The figure 

 varies from oval to oblong, the filaments of the conferva are 

 often entangled in the tail 



4 D 2 



273. Ke~ 



