W0RMS.. INFUSORIA. 165. Vorticella. 



% 



In flagnant pools : body cryftalline, with 3 pellucid points 

 difpofed lengthways, the tip obliquely truncate and the mar- 

 gin bent back : (lent fhort. 



Tafcicula* Simple, green, bell-fhaped, with the margin reflected and 

 **• pedicle twifted. 



Adams Microfc. p. 561. ». 347. 



Inhabits rivers of Denmark, on Confervae, in vaft number?, re- 

 fembling a green gelatinous mafs : floret opake : bafe and pe- 

 duncle very long, hyaline. 



Annularis* Simple, truncate, with the peduncle retortile at the tip. 



Adamf Microfc. p, 561. «. 345. 



Found in ftagnant waters, invilible to the naked eye : floret in- 

 verfely conic, feated on a long rigid peduncle : when con- 

 tracted it appears to be annulate. 



Nutans, Simple, turbinate, with a twifted peduncle. 

 Adams MicrojC. p* 560. n. 343. 



In ilagnant waters : pedicle fpirally twifted : floret tipt with white 

 and appearing as if furrounded with a lucid ring. 



Gemellus Simpfe, fphsrical, with a double head. 

 Adams Microfc. p. 562. n. 350. 



Found in the {hells of Monocun 3 among fea Conferva?, invisible 

 to the naked eye : heads or Horets hyaline filled with pbfcure 



dots* 





*Nebulife- Simple, egg-fhaped, with a reflexile ftem. 

 ra. Adams Microfc. p. 560. tab. 27* fig. 66. 



Inhabits the Baltic, on tire Conferva polymorphs, invifible to 

 the naked eye: fioret narrow at the bafe, truncate and mar- 

 gined when open, ovate when (hut. 



*Convalla- Simple, bell-fhaped, with retortile ftem. 

 «*• Sbaw Natur. MiJ cell, tabs 312. 



Adams Microfc. p. 407. tab. 22. fig. 39, 



Baker Micogr. p. 359. tab, i$*fig. I. d, e, 



Roef Inf. 3. polyp, p, 597. tab. 97. 



Mull. anim. ijfufi p. 315. tab. 44 fig, 16. 



Ledermuller Microfc. tab. 88. fig. T, 



Cavolin. pol. mar 3. ^>. 2 > 3* tab.g.f. 13. 



Inhabits frefh waters on other fubitances, and appears to the 

 naked eye as (o many white points: Hems contracting fudden- 

 ly in a ipiral manner, and in a moment expanding themielveo 

 again. 



VOL. IV. — 4 T 



*Z 



unaris. 



