8. Individuals solitary Genus *_Vorticella_
Individuals colonial; Genus *_Zoothamnium_
entire colony contractile
Individuals colonial; parts Genus _Carchesium_
only of the colony contractile
* Presence at Woods Hole indicated by asterisk.
Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901 · 第 81 / 84 题