WORMS. INFUSORIA, no. Colpoda. 



m 



Puhinatum Quadrangular, opake, with 4 cylindrical protuberances. 

 Found on dunghills. Adams Microfc. p. 49. n. 115- 

 Body like a quadrangular membrane, appearing as if formed of 

 3 or 4 cylindrical pillows flattened or funk here and there. 



fohfphari* Orbicular, pellucid, with innumerable fphxrical molecules. 

 cum. Scbranck Beytr. I . p. 145. tab. 2. fig. I, K. _ 



In ftagnant water: greenifh -yellow, compofed of innumerable 

 lucid globules contained in a membrane. 



Truncatum With obtufe angles, and arched on the hind-part. 



Adams Microfc. p. 491 . ». 1 1 8. . 



In pure water; the fore-part a ftraightline, with which the tides 

 form obtufe angles, the ends of the fides- being united by a 

 curved line; the interna! .molecules dark-greetij with 2 little 

 bright vefules in the middle. 



ReBangu- With right angles, aud arched on the hind- part. 

 lum, Adams Microfc. p. 490. n. 117^ 



Angle at the bale a right one : inteftines green. 



110. COLPODA. Worm ravifiBle to the 



naked eye, very limple, pellucid, flat, 

 iinuate. 



Lamella. Elongated, membranaceous, curved on the fore- part. 



Adams Microfc. p. 484. M.98. 



In water : refembles a long narrow pellucid membrane, narrower 

 and obtufe behind, curved towards the top, with a ndge or 

 fold going through the middle : it moves to and tro on its edge 

 and not on the flat fide. 



Roflriuvil , Oblong, hooked on the fore-part. 



Adams Microfc. p. 484. n. 1 00. V i 



In purer water; fore-part bent into a kind of hook, the hind-paft 



obtufe : one of the edges from the top to the middle dilated, 



thick and apparently triangular. 



*Mekagris. Changeable, with the fore-part hooked, hind-part folded up. 

 Adams Microfc. />, 4.86. tab. 25. %. 22* 

 Donovan s Brit. Inf. tab 32. fg. 2. 



In writer impregnated with vegetables : memlrane dilated, finely 

 folded, which is vari-oufly bent every mom.nt; the lore- part 

 clear and bright, the hittd-paft variously plaited and full of 

 molecules, the margin fm'uous. 



VOL. IV, — 4 X *Qucidlii<, 



