694 WORMS. INFUSORIA. 104. Brachionus. 
* Uncinatus Biyalve; fhell unarmed and rounded at the tip, the bafe 1- 
toothed: tail with 2 briftles. 
Adams Microft. p. 567. tab. 27. f. 55. 
Found in ditcb-water: jell rounded and capable of being 
opened at both ends, the fore-part armed with a hook: :47/ 
compofed of 4 or 5 points. pr 
€Mucrona- Bivalve; fhell 2-toothed at the bafe and tip: tail with a 
tus. double fpine. 
Mull. Verm. iv 1, f. 334. 1.146. 
Found in ftagnant water: rotatory organ mucronate in the mid- 
dle: sail with moveable pellucid fpines: hell cryítalline, 
rather oblong, truncate both fides, : 
Cernuus. With a hairy peduncle and drooping heads, 
Pall. Spicil. Zool. 10, tab. 4. f. 10. 
Found in the Za5u/ar;a fiflulofa. 
*Calycifo- Simple, calyculate, with the fhell crenate behind and the 
rus. upper lip of the mouth 4-toothed. 
Baker Microfe. p, 304. tab. 12. f; 4—6. 
Found in various waters, 
Tubifex. Shell tubular, pun&ured: body producing offspring in an 
. oppofite dire&ion: border lobed and ciliate, 
Schaff Monogr. 1755. tab. 
Inhabits ftagnant waters: probably not of this Genus, 
*Ouadri- Shell ventricofe, 4-toothed at the tip: rotatory organ dou- 
dentatus. ble: the bafe 2-horned: tail long, ending in 2 fhost 
points. 
Adams & Keenm. Microft. p 569. tab. 27. f. 58» 
Baker Mic. tab. 12. f. 11—13. 
Hermann, Naturf. 19. p. 47« tab. 2. f. 9* 
Inhabits ftagnant waters, and fwims with great fwiftnefs: /2elf - 
very pellucid, 
*Patiga, Shell orbicular, unarmed, entire, with a double rotatory 
organ and fhort fimple tail. 
Hermann. Naturf. 19. p. 48, tab. 2. f. 10. 
Eikborn Naturg. Wafferm. tab. V. f: 2. 4. - 
Vorticella circularis, Shaw Nat. Mife. tab. 199. 
Found in ftagnant waters filled with vegetables. 
105. 
