6oo 



Microscopical Essays, 



262. Kerona Lyncafler. 



Kerona fubquadrata. roftro obtufo, difco corniculis micanti- 

 bus. This fpecies of kerona is rather fquare, the difc furnifhed 

 With mining horns. See Zool. Dan. prod. add. p, 281. 



263. Kerona Hiftrio. Fig. 20, Plate XXVI. 



Kerona oblonga, antice punclis mucronatis nigris, poftiee pin- 

 nulis longitudinalibus, inftrucla. 



It is an oblong membrane, pellucid, with four or' five black 

 points in the fore-part, which are continually changing their fitu- 

 ation, thick fet with fmall globules in the middle, among which 

 four larger ones are fome times perceived, thefe are probably 

 eggs ; in the middle fpace of the hind-part are fome longitudinal 

 ftrokes refembling brifiles ; they do not feem to project beyond 

 the body, b the horns, c fome hairs, d a folitary horn, e a large 

 globule, f fome brifiles. 



264. Kerona Cypris. Fig. 21, Plate XXVI. 



Trichoda obovata, verfus poflica fuperne finuata, antice crinita. 

 Egg-fhaped, towards the hind-part fmuated, the fore-part hairy. 



This animalculumis comprefled, and fomethingin a pear-fhape, 

 the fore-part broad and blunt, the front is furnimed with fhort 

 hairs a, or little vibrating points inferted under the edge, fhorter 



