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). ti, Bell-Animalcule [Vorticella)^ extended and re- 

 tracted, c, Slipper-Animalcule {ParaincEciunt), d, Volvox. e. Euglena. f, Noctiluca. g, Codonocladium. 

 H, Monads: i and 2, Springing Monad {Heteromita); 3, Chilomonas ; 4, Hexafnita. j and y, Skeletons of 

 '^^^\o\2x\3.{HeliosphcBra and Encyrtidium). k, A Sun -Animalcule {ActinospheBriuin). l and l'. Small piece 

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

 of protoplasm, n, o, p. Shells of Foraminifera [Globigerina, Nodosaria, and Miliola). Q, A shell-bearing 

 Rhizopod {Di0ugia), allied to Amoeba, k, Proteus Animalcule [Aj7zceba). 



