^12 WORMS. INFUSORIA, io8. Burfaria. 109. Gonium, 
Cychdium, Oval, flightly emarginate behind, with an exfertile tail. 
Adams Micrnfc. p. 499. n. 141. 
In pure water: body {mooih, membranaceous, pellucid, with** 
black margin ; intefines pellucid veiicles. 
Tenax, Mertibranaceons, rather thick before, the tail 3 times as 
(hort as the body. 
Adams Microfe. p, 499. n, 142. 
In water in which the lordes of the teeth has been infufed : boij 
oval, pellucid, the fore-part truncate, the hind-part acute anil 
ending in a Ihort tail. 
108 . BURSAllIA. Worm very limple, meiH' 
branaceous, hollow. 
Irsmcatella Vcntricofe, truncate at the top. 
Adams Microji, /. 491. « iig. 
In marfliy water : body white, oval, truncate at the top, with ® 
large hollow defeending to the bafe, with fometimes 4 or 5 
yellow eggs at the bottom. 
•Uirundi~ Oval, pointed at each end, with a fharpfin each fide. 
tMIo, Adams Microfe. p. 492 tab, 25. f. 19. 
Dontmatis Blit. Inf. tab, 5. f, 2. 
In ditch and marfliy water: a pellucid hollow membrame, mo''" 
ing forwards like a bird in flight. 
.^JOuplella, Elliptic, with the edges folded over leaving a narrow longi' 
tudinal' cavity. 
Adams Mkrofe. p. 492, tab. 25. f. 18. 
Found arnong duck- weed ; without vifible intellines. 
109. GONIUM. TUor)?? A'cry hmple, flat, an' 
gular, invifible to the naked e3'e. 
iFermale. Qiiadrangular, pellucid, with 16 fphxrical molecules. 
Adams Microfe. 489. tab. 25. 1 7. 
ASl, Stockh. 1781. p. 21. Kl. Schr. i,p. 15. y. 1 — 3. 
Gaeze ap. Bonnet InfeSol p, 376. tab. 4./'. 8. 
Sebr. Beytr, Nat. p. 107. tab. ^.f. 23 — 27. 
In pure water: molecules oval, nearly equal in flze, fet in a qi’*' 
drangiilar membrane like diamonds in a ring, the lower ones s 
little larger than the refl.- 
PulvlnatmH' 
