WORMS. INFUSORIA. tro. Colpoda. 713 
Pulvinatum Quadrangular; opake, with 4 cylindrical protuberances. 
Found on dunghills. Adams Microfc. p. 49. 2. 115. 
Body like a quadrangular membrane, appearing as if formed of 
3 or 4 cylindrical pillows flattened or funk here and there. 
Pulyfphari- Orbicular, pellucid, with innumerable fpherical molecules. 
vines Schranck Beytr. 1. 9. A45. tab. 2. fig. 1, K. 
In ftagnant water: greenifh- yellow, compofed of innumerable 
lucid globules eontained in a membrane. 
Truncatum NV ith obtufe angles, and arched on the liind-part. 
Adams Microfé. 9. 491. n. 118. 
In pure water: the fore-parta ftraight line, with which the fides 
form obtufe angles, the ends of the fides being united by a 
curved line; the internal molecules dark-green, with 2 little 
bright veficles in the middle. 
ReGangu- With right angles, aud arched on the hind-part. 
Jum. Adams Microfc. p- 499. 4.147. 
Angle at the baíe a right one: inteftines green. 
110. COLPODA. Worm invifible to the 
naked eye, very fimple, pellueid, flat, 
finuate. 
Lamella, Elongated, membranaceous, curved on the fore-part. 
| Adams Microfe. p. 484. 2.98. 
In water: refembles a long narrow pellucia membrane, narrower 
and obtufe behind, curved towards the top, with a ridge or 
fold going through the middle: it moves to and fro on its edge 
and not on the flat fide, 
Roffrux, | Oblong, hooked on the fore-part. 
Adams Microfc. p. 484. 2. 100. 
In purer water: fore-part bent into a kind of hook, the hind-part 
obtufe: one of the edges from the top to the middle dilated, 
thick and apparently triangular. 
* Meleagris, Changeable, with the fore-part hooked, hind- Ur folded up. 
Adams Microfe, p.486. tab. 25. fig. 22. 
Donovan's Brit. Inf. tab 32. fig. 2. 
In water impregnated with vegetables: membrane dilated, finely 
folded, which is varioufly bent every moment ; the tore-part 
clear and bright, the hind-part varioufly plaited and full. of 
molecules, the margin linuous. 
VOL.IV. —4X * Cucullus, 
€ 
