Relevant individuals are included in this index with the dates of their birth and death, as well as the first page on which they’re mentioned. Secondary characters and those individuals who can be considered generally well known are not included in the list.
- Agassiz, Louis (1807–1873), 228
- Alexander, Charles P. (1889–1981), 146, 191
- Arndt, Walther (1891–1944), 211
- Bechstein, Johannes Matthäus (1757–1822), 45
- Bonnet, Charles (1720–1793), 227
- Buch, Leopold von (1774–1853), 211
- Bütschli, Otto (1848–1920), 231
- Canterbury, Hadrian von (d. 710), 19
- Canterbury, Theodor von (602–690), 19
- Casey, Thomas Lincoln, Jr. (1857–1925), 200
- Cuvier, Frédéric (1773–1838), 42, 123
- Dames, Wilhelm (1843–1898), 113
- David, Armand (1826–1900), 38
- Dybowski, Benedykt (1833–1930), 129
- Emmet, Arthur Maitland (1908–2001), 138
- Fotheringham, Augustus C. (see Sharp, Lester W.), 256
- Gessner, Conrad (1516–1565), 45
- Girault, Alexandre Arsène (1884–1941), 167, 245
- Godlewski, Wiktor (1831–1900), 132
- Goette, Alexander (1840–1922), 231
- Gould, Augustus Addison (1805–1866), 228
- Graff, Ludwig von (1851–1924), 231
- Grzimek, Bernhard (1909–1987), 23
- Heck, Ludwig (1860–1951), 12
- Hesse, Richard (1868–1944), 230
- Illingworth, James Franklin (Johann Francis) (1870–1949), 246
- Kearfott, William Dunham (1864–1917), 138
- Kirkaldy, George Willis (1873–1910), 143
- Kluge, Friedrich (1856–1926), 16
- Leunis, Johannes (1802–1873), 181
- Linnaeus, Carl (1707–1778), 7, 45, 106, 119
- Ludovici, Anthony M. (1882–1971), 258
- Ludwig, Hubert (1852–1913), 231
- Marsh, Othniel Charles (1831–1899), 99
- May, Robert M. (b. 1936), 238
- Mayr, Ernst (1904–2005), 85
- Meyrick, Edward (1854–1938), 201
- Milne Edwards, Henri (1800–1885), 39
- Milne-Edwards, Alphonse (1835–1900), 40
- Möbius, Karl August (1825–1908), 229
- Müller, Johannes (1801–1858), 211
- Musschenbroek, Pieter (Petrus) van (1692–1761), 223
- Neave, Sheffield Airey (1879–1961), 217, 247
- Pic, Maurice (1866–1957), 200
- Pohle, Hermann (1892–1982), 12
- Ray, John (1627–1705), 222
- Reichenow, Eduard (1883–1960), 231
- Reitter, Edmund (1845–1920), 200
- Rosenhof, August Johann Rösel von (1705–1759), 227
- Schmidt, Christian (dates unknown), 51
- Schulze, Franz Eilhard (1840–1921), 231
- Sharp, Lester W. (1887–1961), 256
- Simpson, Georg Gaylord (1902–1984), 255
- Spengel, Johann Wilhelm (1852–1921), 231
- Steiner, Gerolf (1908–2009), 254
- Stümpke, Harald (nom de plume; see Steiner, Gerolf)
- Taschenberg, Ernst Ludwig (1818–1898), 96
- Thunberg, Carl Peter (1743–1828), 63
- Valen, Leigh van (1935–2010), 173
- Villers, Charles Joseph de (1724–1810), 63
- Walker, Francis (1809–1874), 186, 195
- Werner, Franz (1867–1939), 141
- Werner, Fritz Clemens (1896–1975), 58
- Wilson, Edward O. (b. 1929), 238
- Zimmermann, Eberhard (1743–1815), 226