Otto Franz von Möllendorff
Otto Franz von Möllendorff was a German scientist, a malacologist. In 1894, Jose Rizal sent to Möllendorff specimens of large sea snails known as tun shells together with some specimens of a species of small freshwater snails stored in glass vials. The species of small snails was later named Oncomelania quadrasi by Möllendorff in 1895 in honour of Don José Florencio Quadras, a Spanish malacologist who was also based in Manila at that time.
A species of rat snake, Elaphe moellendorffi, is named in his honor.
