Description
Flagellata 1.png
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English:
* 1. — Chlamydomonas pulvisculus, Ehr. (Chlamydomonadidae) free-swimming individual.
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a = nucleus.
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b = contractile vacuole.
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c = starch corpuscle.
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d = cellulose investment.
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e = stigma (eye-spot).
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2. Resting stage of the same, with fourfold division of the cell-contents. Letters as before.
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3. Breaking up of the cell-contents into minute biflagellate swarm-spores, which escape, and whose history is not further known.
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4. Syncrypta volvox, Ehr. (Chrysomonadidae). A colony enclosed by a common gelatinous test c.
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a = stigma.
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b = vacuole (non-contractile).
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5. Uroglena volvox, Ehr. (Chrysomonadidae). Half of a large colony, the flagellates embedded in a common jelly.
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6. Chlorogonium euchlorum, Ehr. (Chlamydomonadidae).
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a = nucleus.
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b = contractile vacuole.
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c = starch grain.
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d = eye-spot.
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7. Chlorogonium euchlorum, Ehr. (Chlamydomonadidae). Copulation of two liberated microgonidia.
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a = nucleus.
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b = contractile vacuole.
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d = eye-spot (so-called).
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8. Colony of Dinobryon sertularia, Ehr. (Chrysomonadidae).
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9. Haematococcus palustris, Girod (= Chlamydococcus, Braun, Protococcus, Cohn), one of the Chrysomonadidae; ordinary individual with widely separated test.
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a = nucleus.
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b = contractile vacuole.
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c = amylon nucleus (pyrenoid).
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10. Dividing resting stage of the same, with eight fission products in the common test e.
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11. A microgonidium of the same.
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12. Phalansterium consociatum, Cienk. (Choanoflagellata); × 325. Disk-like colony.
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13. Euglena viridis, Ehr.; × 300 (Euglenidae).
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a = pigment spot (stigma).
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b = clear space.
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c = paramylum granules.
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d = chromatophor (endochrome plate).
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14. Gonium pectorale, O. F. Müller (Volvocineae). Colony seen from the flat side; × 300.
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a = nucleus.
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b = contractile vacuole.
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c = amylon nucleus.
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15. Dinobryon sertularia, Ehr. (Chrysomonadidae).
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a = nucleus.
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b = contractile vacuole.
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c = amylon nucleus.
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d = free colourless flagellates, probably not belonging to Dinobryon.
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e = stigma (eye-spot).
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f = chromatophors.
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16. Peranema trichophorum, Ehr. (Peranemidae), creeping individual seen from the back; × 140.
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17. Anterior end of Euglena acus, Ehr., in profile.
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a = mouth.
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b = vacuoles.
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c = pharynx.
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d = stigma (eye-spot).
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e = paramylum-body.
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f = chlorophyll corpuscles.
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18. Part of the surface of a colony of Volvox globator, L. (Volvocidae), showing the intercellular connective fibrils.
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a = nucleus.
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b = contractile vacuole.
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c = starch granule.
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19. Two microgametes (spermatozoa) of Volvox globator, L.
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a = nucleus.
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b = contractile vacuole.
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20. Ripe asexually produced daughter-individual of Volvox minor, Stein, still enclosed in the cyst of the partheno-gonidium.
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a = young, partheno-gonidia.
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21, 22. Trypanosoma sanguinis, Gruby (Haematoflagellates), from the blood of Rana esculenta.
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23—26. Reproduction of Bodo caudatus, Duj. (Bodonidae), after Dallinger and Drysdale:—23, fusion of several individuals (plasmodium); 24, encysted fusion-product dividing into four; 25, later into eight; 26, cyst filled with swarm-spores.
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27. Distigma proteus, Ehbg., O.F. Müller (Euglenidae); × 440. Individual with the two flagella, and strongly contracting hinder region of the body.
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28. The same devoid of flagella.
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c, c = the two dark pigment spots (so-called eyes) near the mouth.
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29. Oicomonas termo (Monas termo) Ehr. (one of the Oicomonadidae).
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c = food-ingesting vacuole.
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d = food-particle; × 440.
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30. The food-particle d has now been ingested by the vacuole.
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31. Oicomonas mutabilis, Kent (Oicomonadidae), with adherent stalk.
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a = nucleus.
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b = contractile vacuole.
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c = food-particle in food vacuole.
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32, 33. Cercomonas crassicauda, Duj. (Oicomonadidae), showing two conditions of the pseudo-podium-protruding tail.
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a = nucleus.
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b = contractile vacuoles.
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c = mouth.
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