WORMS. INFUSORIA. 105. Vorticella. 699 
In. ftagnant pools: body cryftalline, with 3 pellucid points 
difpofed lengthways, the tip obliquely truncate and the mat- 
gia bent back: fem fhort. 
Fafeiculas Simple, green, bell-fhaped, with the margin reficcted and 
ta. pedicle twifted. 
Addams Microfc. b. 561. n. 347. 
Inhabits rivers of Deamark, on Conferve, in vaft numbers, re- 
fembling a green gelatinous mais; foret opake: ba/e and pe- 
duncle very long, hyaline. 
Aunularis, Simple, truncate, with the peduncle retortile at the tip. 
Adams Microfe. p, 561. 2.345. 
Found in ftagnant waters, invifible to the naked eye: floret in- 
. verfely conic, feated on a long figid peduncle: when con- 
tracted it appears to be annulate.” 
Nutans. Simple, turbinate, with a twiíted peduncle. 
Adams Micrye. p. $60. 2. 343. 
In ftagnant waters: pedicle {pirally twifled : floret tipt with white 
and appearing as if furrounded with a lucid ring. 
Gemella, Simple, {pharical, with a double head. 
Adams Microfc. p. 562. n. 350. 
Found in the fhells of Monoculi, among fea Confervz, invifible 
to the naked eye: Acads or florets hyaline filled with obfcure 
dots. 
*Nebulife- Simple, egg-fhaped, with a reflexile ftem. 
ra. Adams Microfc. p. 560. tab. 27. fig. 66. 
Inhabits the alc, on the Conferva polymorpha, invifible to 
the naked eye: fret narrow at the bafe, truncate and mar- 
gined when open, ovate when fhut. 
*Convalla- Simple, bell-ihaped, with retortile ftem. 
ride Shaw Natur. Micill. tab, 312. 
Adams Microfe. p. 407. tab. 22. fig. 39- 
Baker Micozr. p. 339- tab. 13. fig. 1. d, e. 
Rocf Inj. 3. polip. ps 597. tab. 97. 
M ali. anion. infuf. p- 315. tab. 44. fig. 16. 
Ledermuller Microfe. tab. 28. fig. '. 
Gavolia. pot. mar 3. p- 253. tab. 9: f- 136 
Inhabits irefh warers on other fubftances, and appears to the 
naked cye as fo many white points: ems contracting ludden- 
ly in à fpiral manner, and in a moment expanding themielves 
again, ^ : : 
VOL, Wea * Lursrisg 
