WORMS. INFUSORIA. 88-89. 22T 



$j9. L. cornufn. Inversely conic, green, opake. 



Adams Micro/cope p. 506. tab. 2.^/. 42. 43. 



In marshy grounds; broad and truncate in front, with a small 

 spine each side, pellucid and pointed behind : sometimes it ap- 

 pears oval or kidney-shaped, and when the water which contains 

 it evaporates, it breaks into molecular vesicles. 



840. Lu heteroclita. Cylindrical, obtuse in front, furnish- 

 ed behind with a double crested •exsertile organ. 



Adams Mia. p. 506. tab. 25./. 44. 45. 



To the naked eye appearing as a white point; intestines 

 visible. 



86. BURSARIA. 



841. B. Hirundinella. Oval, pointed at each end, with 

 a sharp fin each side. 



Donovan Ins. t. 5./. 2. Adams Micr. t. 25. /. 19. 



In ditch and marsh water: a pellucid hollow membrane, mov- 

 ing forwards like a bird in flight. 



342. B. duplella. Elliptic, with the edges folded over, 

 leaving a narrow longitudinal hollow. 



Jtdams Micro/cope p. 492. t. 25./. 18. 



Among Duck-weed, without visible intestines. 



87. GONIUM. 

 $ 43 • G. pectorale. Quadrangular, pellucid, with 16 sphay 

 rical molecules. 



Adams Micro/cope p.* 489. t. 25./. 17. 



In pure water : molecules oval, nearly equal in size, fet in a quad- 

 rangular membrane like diamonds in a ring, the lower-ones a 

 little larger than the rest. 



U COLPODA. 



544. C. Meleagris. Changeable, with the fore-part hook- 

 ked, the hind-part folded up. 



Donov. Ins. t. 32./. 2. Adams Micr. t. 25. /. 22. 



In water impregnated with vegetables: membrane dilated, 

 finely folded, variously bent every moment; the fore-part clear 

 and bright, the hind-part variously plaited and full of molecules $ 

 the margin sinuate. 



545. C. CacuUus. Oval, inflated, with an incision be- 

 neath the tip. 



Adams micr. p. 487. tab.. 25. f. 23. 



In various vegetable infusions : pellucid, with an irregular 

 margin, filled with bright molecules; generally oval, with the 

 top bent into a kind of beak, sometimes oblong but usually obtuse, 

 with 8—24 bright molecules 



846*. C. Pyrum. Convex, oval, produced in front into a 

 beak 



Adams Micr. p. 489, tab. 25./. 20. 21. 



Body uniform, transparent, pale, filled with molecules j the 

 neck rather long and a little bent. 



89. PARAMECIUM. 



847. P. Aurelia. Compressed, longitudinally plaited 

 towards the fore-part, acute behind. 



Hill Anim. \.t. 3, Herman. Naturf. 20. t. 3./. 41. a. 

 In ditch-water and infusions ; membranaceous, 4 times as long 



