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 1-1 2000th to 1 -6000th. 



{b). Oval or Egg-shaped Monads — all colourless. 



10. M.O'S x^ kolpoda. The mamma-shaped Monad. — Va- 

 cillating motion. Discovered in water in the silver mines 

 of Siberia. Size 1-7 200th. 



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 1 -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 7nica. The glittering Monad. Rotatory 

 and vacillating motion. Inhabits clear fresh water. Size 

 1-I440thto 1-1 200th. 



