WORMS. INFUSORIA. 105. Vorticella. "Or 
In ftagnant waters, and appears to the naked cye like a yellowifh 
dot, and in rain water that has ftood fome time in gutters and 
cifterns; it very frequently phanges its form and motion, from 
a long taper body to a fhort * road flat one: the rotatory organs 
turn like wheels with confiderable velocity : tail compofed of 
about 3 retractile joints and terminated by 4 minute hooks. 
*Tacinala- Inverfely conic, with the aperture lobed, and tail furnifhed 
tae with 2 fmall briitles. 
Adants Microfe. p. 547- ! ab: 27. f. 45. 
In pure water: pellucid, cylind lrical, with molecular inteftines: 
moves wi:h veloc “ity in an oblique Mizcétion. 
Sacculata. Inverfely conic, with a lunate aperture: trunk 2-toothed 
behind, wtth a long 2-leaved tail. 
dA dam; Microfe, p» $545. tab. 27. f. 42, 45. 
C. IFithout tail or flem. 
* Ampulla. Contained in a bottle-fhaped pellucid bag: head divided 
into 2 lobes. 
Adams Micrife b. $44. tab. 26. f 4, 5. 
Bag in the (liape of a common water Rud in which the ani- - 
maicule is placed, fometimes 2t the bottom, fometimes nearly 
filling it. 
*Cratega- Subelobular; clateved and fometimes united by avery mi- 
"ia. nute ftem or tail. 
Adams Microft. p. 400. tab. 22. f. 40. 
Baker Micagr. p. 537. tab. 33. f. 5. 13. 
Reef. Inf. 3: polyp- p. 604. tab. 98, if 2. a4. 3, 
Leder mulier Micrafc. tab. 88. Ff. 0, p. 
Found in muda ‘and about the Monoculus quadricornis in the 
month of April, generally heaped together in a fphzrical form 
and often united to a common ftalk. 
Caniculate. Dilated, pellucid, with an incifion in the fide. 
Adams Microfe ^f. $44. 2. 310. 
In ‘infufions of ditch water, and appears to the naked eye asa 
white point: gregarious, pellucid, with aark inteilines. 
*Nafuzs Cylindrical, with a projecting point in the middle of the cup. 
—À ‘Donovan’ s Erg Inj, tad 29 fr 2. 
Adams Microfc. p. 541. tab 27. f 38, 39. 
In fagnant water: 15vifible to the naked eye, peilueid, changing 
its form perpetuaily, quick in motion; end saving the rota- 
tory organ furrounding the middle of the body, 
*Cra- 
