Johann Friedrich Theodor (Fritz) Müller
German naturalist. Studied mathematics and natural history, and then medicine, before emigrating to the German colony in Blumenau, Brazil, in 1852. Taught science at a school in Desterro (now Florianópolis), 1856–67. Appointed Naturalista Viajante of the National Museum, Rio de Janeiro, 1876–92. His anatomical studies on invertebrates and work on mimicry provided important support for CD's theories.
Sources: ADB DBE Möller, Alfred 1915–21 NDB
(See the bibliography for full references to sources)