Continental lake-dwelling zooplanktonic organisms have long been considered cosmopolitan species with little geographic variation in spite of the isolation of their habitats. Evidence of morphological ...
https://doi.org/10.2307/3672532 • https://www.jstor.org/stable/3672532 Copy URL ...
THE Rotifera are remarkable among the Metazoa for their small size, often smaller than the largest ciliated Protozoa. Many rotifers are colourless or at most show some slight colour in the gut wall, ...