346 Hartog. — On a Monadine parasitic , etc. 
EXPLANATION OF FIGURES IN PLATE XXII. b. 
Illustrating Prof. Hartog’s paper on a Monadine parasitic on Saprolegnieae. 
Figs, i, 2 ( x 7 50 e). Two young swarmers as drawn in the infested hyphae 
which contains also mature zoocysts ; nucleus seen. 
Fig. 3 (x 750 e). Young amoeboids in the living hyphae of Achyla. Two con- 
tractile vacuoles shown, one in the moment of reconstitution after systole by the 
confluence of three minute ones. n = nucleus; co = contractile vacuoles. 
Figs. 4, 5, 6 ( x 750 E). Older amoeboids from within a hypha ; 5 and 6 are 
successive stages of the same; a few bright (faecal?) granules present. 
Figs. 7, 8 ( x 750 e). A migrating amoeboid inserting a pseudopodium into a 
living hypha ; two successive stages. 
Figs. 9-13 (2 mm. apochr., 12 Comp. Oc. x 1000; owing to their being 
balsam specimens this is equivalent to a magnification of 666 x the living organism). 
9, young zoocyst with faecal mass ( e ) and nucleus ; 10, same, with seven daughter 
nuclei visible (eight in all); 11, 12, further stages of spore-formation, the spore- 
origins somewhat unduly separated by shrinkage ; 1 3, the spores completely 
separated. 
Fig. 14 (same magnification). Balsam specimen at commencement of zoocyst- 
formation, with flagellum protruded. 
Fig. 15 (x 750 e). Same stage living; some of the faecal granules still in the 
protoplasm. 
Fig. 16 (x 750 e). Live zoocyst, divided partially into spore-origins by radiating 
vacuoles. 
Fig. 17 (x 350 e). Portion of infested hypha of Achyla with zoocysts and 
cellulin-bodies ( \c ). 
Besides the magnifications, the objective of Zeiss under which the drawing was 
made is given. 
