Fish were his specialty and he worked with many of the greatest ichthyologists of his time including Cuvier, Valenciennes, Bonaparte, Müller, and Troschel.
Johann Sebastian Bach | Johann Wolfgang von Goethe | Johann Strauss II | St. Johann in Tirol | Johann Heinrich Pestalozzi | Johann Albert Fabricius | Johann Christian Bach | Johann Georg Wagler | Friedrich Gustav Jakob Henle | Johann Pachelbel | Johann Nepomuk Hummel | Johann Gottfried Herder | St. Jakob-Park | Johann Nestroy | Johann Joachim Winckelmann | Johann Gottlieb Fichte | Johann Bernhard Fischer von Erlach | Johann Homann | Johann Friedrich Böttger | Jakob Böhme | Johann Kuhnau | Johann Heinrich Lambert | Johann Friedrich Blumenbach | Philipp Jakob Cretzschmar | Johann Wilhelm von Müller | Johann Wilhelm, Elector Palatine | Johann Mattheson | Johann Jakob Engel | Johann Gustav Droysen | Johann Gottfried Schadow |