Franz Steindachner is a zoologist who devoted three-quarters of his 85-year life to original research in the ichthyology (fish science). He was assigned for duty in different institutions related to the zoology in Austria. Between the years 1890 and 1898, he took part in the team that carried out Eastern Mediterranean Expeditions with the support of the Austro-Hungarian Empire. From 1898 to 1919, he served as the director of the Austrian Royal Museum of Natural History. In this context, there were also expeditions in the Ottoman Empire in the 19th century and Steindachner made researches in the field of ichthyology in the Balkans and Anatolian lands. These researches were not hindered by the Ottoman Empire. However, the Ottoman Empire has not been a pioneer of scientific developments. The place of the Ottoman Empire in the age of discoveries can be understood by the work of the zoologist Franz Steindachner. His researches included information about the state of the Ottoman Empire's territories about the ichthyology of the 1890's reign. Today, Turkey's endemic advertising given by Steindachner in geography are available.