Fig. 35. — Microscopic organisms of the dwarf plankton or ' Nannoplankton.' (After 

 Lohmann.) 1. Halteria rubra, a ciliated Infusorian, with a symbiotic Alga 

 inside it. 2. Meringospheera mediterranea, a unicellular Alga, with long pro- 

 jecting processes. 3. A Chrysomonad with projecting rods on its shell. 4. A 

 Monad. 5. Cladopyxis setifera, a Peridinid Infusorian. 6. A Coccolith, 

 Rhabdosphaera daviger. 7. A unicellular Alga, Chaetoceras gracile. 8. 

 Phytoflagellate, Eutreptia. 



