Lymphosporidium Small 123×320 Medium 246×640 Large 393×1024 Download Tiff Original 922×2400 | (351.2 KB) Description An illustration of the adult amoeboid Lymphosporidium truttae, which was the cause of the brook-trout epidemic of the 1800s. Keywords amoeba, amoeboid, brook-trout, fish, Lymphosporidium truttae, unicellular organism Galleries Cellular Biology Source: The April Century Magazine (London, England: MacMillan and Co. LTD, 1904)