Monadina.] THE INFUSORIA. 93 



7. MONAS ochracea. The ochre-coloured Monas. 

 Yellow-ochre colour. Found in water- courses. Size 

 1- 6000th at most. 



8. MONAS erubescens. The pale-red Monad. Rose- 

 coloured, and with a slow but continual motion. Found 

 in salt water. Size 1-1 728th. 



9. MONAS vinosa. The wine Monad. Colour of red 

 wine. Tremulous motion. Rejects coloured food. Found 

 in vegetable infusions. Size from l-12000th to l-6000th. 



(b). Oval or Ego-shaped Monads all colourless. 



10. MONAS kolpoda. The mamma-shaped Monad. Va- 

 cillating motion. Discovered in water in the silver mines 

 of Siberia. Size l-7200th. 



11. MONAS enchelis. The flask-shaped Monad. 

 Continuous slow motion. Found in marsh water. Size 

 l-1200th to l-960th. 



12. MONAS umbra. The shadow Monad. Rapid mo- 

 tion. Found among fresh conferva. Size 1 -2400th. 



13. MONAS hyalina. The diaphanous Monad. Active, 

 and seems to leap or jump. Found in stale water in glass 

 vessels. Size 1 -6000th to l-2880th. 



14. MONAS gliscens. The gliding Monad. Gliding 

 motion. Found in watery infusions of the stinging nettle. 

 Size l-4500th. 



15. MONAS ovalis. The little Egg-shaped Monad. 

 Tremulous motion. Found in water of the Anodonta 

 Molusca. Size 1 -9600th. 



16. MONAS mica. The glittering Monad. Rotatory 

 and vacillating motion. Inhabits clear fresh water. Size 

 l-!440thto 1-1 200th. 



