EXPLANATION OF PLATE XIV. 

 Fig. 

 1-3. BoDO JULIDIS, Leidy, vol. i. p. 256, x 750 (Leidy). 



4-6. BoDO M.AXIMUS, Schmarda, vol. i. p. 257, x 300 (Schm.). 



7-8. BODO URINARIUS, Hassall, vol. i. p. 258, X 400 (Hass.). 



9-11. BODO LYMN^El, Stiebel sp., vol. i. p. 257. — 9 and 10, Motile zooids, x 600; 11, 

 sporocyst with escaping germs, x 250 (Ecker). 



12, 13. BoDO (Cryptobia) helicis, Leidy, vol. i. p. 256, x 400 (Leidy). 



14. BoDO INTESTIXALIS, Ehr., vol. i. p. 255, X 400. 



15,16. Cercomonas CRASSICAuda, St., vol. i. p. 260. — At 16, with posterior irregular 

 pseudopodic extensions, x 600 (Stein). 



17-20. Cercomonas longicauda, Duj., vol. i. p. 259.— 17 lateral, 18 dorsal view; 19 

 and 20, jjTOgressive stages of longitudinal fission, x 600 (Stein). 



21. Cercomonas cvlindrica, Duj., vol. i. p. 260, x 1200 (Dujardin). 



22-30. Cercomonas typica, S. K. (Dallinger and Drysdale), vol. i. p. 259. — 22, Normal 

 adult monad, x 1750 ; 23 and 24, amoeboid phases of matured monads ; 25 

 and 26, successive results of coalescence of two amoeboid monads ; 27, 

 sporocyst ultimately derived from foregoing coalescence ; 28, sporocyst burst 

 and liberating minute spores ; 29 and 30, progressive phases of transverse 

 fission. 



31-33. GONIOMONAS TRUNCATA, Fres. sp., vol. i. p. 2S0. — At a, eye-like pigment-band, 

 X 600 (Stein). 



34-36. Spumella viviPAR.-i, Ehr. sp. (Stein), vol. i. p. 306.— 34 Attached, 35 and 36 

 free-swimming conditions ; at a, eye-like pigment-band or supposed oral 

 aperture, x 600. 



37-45. Phvsomonas socialis, S. K., vol. i. p. 263. — 37, A group of five monads attached 

 to vegetable fibre, showing at a and b examples incepting food-matter at 

 opposite regions of their periphery, X 1000 ; 38, a free-swimming monad ; 

 39 and 40, illustrating the alternating systole and diastole of the two medianly 

 located contractile vesicles ; 41 and 42, phases of longitudinal fission ; 43, an 

 encysted group, showing at « a stalked and at ^ a stalkless cyst ; at c, two 

 stalks connected with a single and larger cyst, indicating its derivation from 

 the conjugation or coalescence of two zooids, x 1500; 44, a sporocyst with 

 ripe spores, x 2000; 45, monadiform germs released from the same sporocyst, 

 x 2500. 



46-52. Spumella guttula, Ehr. sp. (Stein), vol. i. p. 305, x 600.— 46, Normal attached 

 monad ; 47 and 48, free-swimming monads ; 49 and 50, illustrating conjuga- 

 tive process of larger and smaller monads ; 51 and 52, successive phases of 

 longitudinal fission. 



53. CODONCECA COSTATA, J.-Clk., vol. i. p. 261, X looo (J.-Clark). 



54. CODONCECA OBLIQU.\, S. K., vol. i. p. 261, X 800. 



55-59. Amphimonas GLOBOSA, S. K., vol. i. p. 281. — 55, A group of four monads, one, 

 at a, incepting food on its lateral periphery, x 800 ; 56-59, successive 

 phenomena observed during the inception of a large Bacillus, and in the 

 preliminary phases of which process (Figs. 56 and 57) a film-hke expansion 

 of sarcode was extended over the captured prey. 



60-^5. Deltomonas cyclopum, S. K., vol. i. p. 283.— 60, A social group attached to 

 hair of a species of Cyclops j at a, a free-swimming animalcule, and at ^ a 

 young non-flagellate germ, x 1500; 61, a single monad, x 3000; 62, a group 

 of four monads united by their posterior extremities ; 63, longitudinal 

 fission ; 64 and 65, sporocysts with spores. 



66. Amphimonas divaricans, S. K., vol. i. p. 2S2, x 2500. 



