Max Mapes Ellis

Max Mapes Ellis, (1887 - 1953) was an American physiologist. He was married to the American ichthyologist Marion Durbin Ellis (1887-1972).

Ellis graduated from Vincennes University in 1907 where he was a member of Sigma Pi fraternity and received his PhD in 1909 from Indiana University. In 1908 he was a delegate to Sigma Pi’s first National Congress. After graduation he became an Assistant Professor of Biology in charge of the Zoological Department at the University of Colorado in Boulder, Colorado.

In 1909 he was published in The Journal of Experimental Zoology for his experimentation with tadpoles.

In 1911 he headed the Gimbel exploration into the regions of the headwaters of the Amazon River. Under the joint auspices of Indiana University and the Carnegie Museum of Natural History this expedition made valuable biological discoveries about the gymnotidae eels and fish of the region. These discoveries were chronicled in his paper Gymnotid Eels of Tropical America which was published in 1913.

In 1913, he and Frank Marion Andrews were published in the Bulletin of the Torrey Botanical Club with an article about the leaf hairs of salvinia natans. His first book, The Amphibia and Reptilia of Colorado, which he co-wrote with Junius Henderson was published in 1913. His second book, Fishes of Colorado, was published in 1914.

During this time, he and his wife Marion had their first child, Cornelia Grace, who was born in October 1914.

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