Stentor roeseli as illustrated in Shen & Zhang (1990) Biomonitoring Techniques Using Freshwater Microbiota, China Architecture and Building Press. This image was taken with permission from Modern Biomonitoring Techniques Using Freshwater Microbiota written by Shen Yunfen, Zhang Zongshe and colleagues, and published by China Architecture and Building Press in 1990. Image copyright: China Architecture and Building Press, used under license to MBL (micro*scope).
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From the collection
Protozoan biomonitors in China
|Description of Stentor roeseli: Heterotrich ciliate, similar in form to S. mulleri, the body is narrow and the peristome may be widely expanded. Up to 500 microns - 1mm long. The peristome has no central raised dome. Somatic cilia are present and a gelatinous lorica usually forms. The macronucleus is in the form of a chain of beads or looks like a long rod. This species is not strongly coloured. |