WORMS. INFUSORIA. 82; Vortfcclla. 221 



777. V.Catulus. Cylindrical, with a plain aperture, and 

 reflected cloven tail. 



Adams Microfc. p. 325. tab. 27./, 50.- ' ■ • ' 



In marshy waters, thick, mufcular, variously folded : head con- 

 nected by a short neck : tail short, ending in 2 short bristles, and. 

 exferted or concealed at pleafure: rotatory-organ very minute. 



77g. V. mnu-ou.a. With a double rotatory organ, and 

 slender tail ending in a triple spine. 



Baker Microfc. p. 380. tab. 12./. 1. 



In marshy waters; refemblcs V. rotatoria', but is entirely tranf- 

 parent. 



779. V. rotatoria. Cylindrical, with a double rota- 

 tory organ, and long tail furnished with 4 points. 



Adams Microfc. p. 548. t. 26./. 1-3. 6. 7. 1 1--23. t. 27./. 46-49. 



In stagnant waters, appearing to the naked eye like a yellowish 

 dot, and in rain water which has stood some time in gutters and 

 cisterns ; it frequently changes its form and posture, from a long 

 taper body to a short broad flat one ; the rotatory organs turn 

 Hkc wheels with considerable velocity : tail consisting of about 

 3 retractile joints, and terminated by 4 minute hooks. 



7 80. V. lacinuhtta. Inversely conic, with the aperture 

 lobed : tail furnished with 2 small bristles. 



Adams Microfe. p. 547. tab. 27,/. 45. 



In pure water, transparent, cylindrical, with molecular intes- 

 tines : moving with velocity in an oblique direction, 



C. Without stem or tail. 



7 81. Y. Ampulla. Contained in a bottle-shaped pellu- 

 cid bag : head divided into 2 lobes. 



Adams Microfc. p. 544. tab. 26. f. 4. 5. - * 



Jsag in the shape of a common water-bottle, in which the ani- 

 malcule is placed, sometimes at the bottom, sometimes nearly 

 filling it. 



782. V. cratcegaria. Subglobular^ clustered, and some- 

 times united by a very minute stem or tail. 



Adams Microfc. p. 400. tab. 22./. 40.. 



Found in muddy waters in the month of A^pril, generally hea- 

 ped together in a spherical form, and ofteh united by a commoa 

 stalk. 



783. \ . nasuta. Cylindrical, wkji a projecting point in 

 the middle of the mouth. 



Adams t. 27./. 38. 39. Dono'v. Ins, i. t. 2g.f. 2. 



In stagnant waters, invisible to the naked eye, transparent, quick 

 in motion, and perpetually changing its form, rounded at the base, 

 hairy at the mouth each side : rotatory-organ surrounding the mid- 

 dle of the body. 



7 84. V. crateriformis. Nearly square, with ciliate tufts 

 behind. 



Adams Microfc. p. 543. tab. 27,/. 40. 41. 



Common in infufions of grafs, very vivacious and pellucid, with 

 the internal molecules easily seen, round 3 longer than it is broad, 

 with the sides convex. 



785* Y '. truncatelia, Cylindricalj truncate at top with 

 short crowded fringe. 



Hill Wst.'anijfi.p:6.tab.i, 



In freTh water, transparent, full of blackish molecules, obtuse at 

 the bafe, the margin of *he m.©mb entirely grounded- WUh 

 fringe. 



