R 



Fig. 301. Protozoa, enlarged to various scales. Reference letters: F, Food; FL., flagellum; G, gullet; 



M, mouth; MAC., macronucleus ; MIC., micronucleus ; N, nucleus; P.V., pulsating vacuole 

 A, Cockroach Gregarine (Clepsidrina blattarum}. B, Bell-Animalcule (Vorticella], extended and re- 

 tracted, c, Slipper-Animalcule (P aratncecium}. D, Volvox. E. Euglena. F, Noctiluca. G, Codonocladium. 

 H, Monads: i and 2, Springing Monad (Heteromita}', 3, Chilomonas; 4, Hexamita. J and j', Skeletons of 

 Radiolaria {Heliosph&ra and Riicyrtidiutn\ K, A Sun-Animalcule {Actinospharium}. L and L', Small piece 

 of a Mycetozoon and two capsules (one ruptured) of same. M, A Foraminifer (Rotalia), with protruded threads 

 of protoplasm. N, o, P, Shells of Foraminifera (Globigerina, Nodosaria, and Miliola). Q, A shell-bearing 

 Rhizopod (Difflng ia] , allied to Amoeba. R, Proteus Animalcule {Amoeba}. 



48.) 



