158 
Two New Gregarines 
Leger, L. (1910). Les Schizogr6garines des Tracheates. II. Le genre Schizocystis. Arch . f . 
'JProtistenk . xviii. 83-110, Pis v-vi. 
Schneider, A. (1875). Contribution a l’histoire des Gregarines des Invertebres de Paris et 
de Roscoff. Arch. Zool. Exper. iv. 493-604, Pis xvi-xxii. 
EXPLANATION OF PLATE X. 
All the figures were drawn from living specimens. 
Allantocystis dasyhelei. x 800. 
Figs. 1 and 2. Young sporonts. 
Fig. 3. Full grown sporont. 
Fig. 4. Cyst freshly secreted by a copula; the thickness of the cyst-wall is exaggerated. 
Fig. 5. Cyst with formed sporoblasts. 
Fig. 6. Cyst with spores. 
Fig. 7. Spores seen from different sides. 
Dendrorhynchus system. Figs. 8-12. x 490. 
Figs. 8, 9 and 10. Different stages of sporonts. 
Figs. 11 and 12. Contracted sporonts. 
Fig. 13. Cyst with spores, probably belonging to D. system, x 490. 
Figs. 14 and 15. Spores of the same cyst, x 1000. 
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