Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1898)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1903)

Zoologischer Anzeiger - Deutsche Zoologische Gesellschaft. (VEB Gustav Fischer Verlag, 1910)

Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1882)

Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1883)

Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1884)

Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1885)

Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1888)

Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1890)

Zoologischer Jahresbericht - Stazione zoologica di Napoli. (R. Friedlander, 1886)

Zoologisches Centralblatt (W. Engelmann, 1894)

Zoologisches Centralblatt (W. Engelmann, 1895)

Zoologisches Centralblatt (W. Engelmann, 1902)

Zoologisches Magazin - Müller, C. F. A. (1819)

Zoologisches wörterbuch: ecklärung der zoologischen fachausdrücke. Zum gebrauch beim studium zoologischer, entwicklungsgeschichtlicher und naturphilosophischer werke verfasst von E. Bresslau, J. Eichler, E. Fraas, K. Lampert, Heinrich Schmidt, und H. E. Ziegler - Ziegler, H. E. (Heinrich Ernst), 1858 -1925 (G. Fischer, 1909)

Zoologisches Zentralblatt (W. Engelmann, 1906)

Zoologisches Zentralblatt (W. Engelmann, 1909)

The Zoologist : a monthly journal of natural history (1857)

The Zoologist : a monthly journal of natural history (1860)

The Zoologist : a monthly journal of natural history (1861)

The Zoologist : a monthly journal of natural history (1862)

The Zoologist : a monthly journal of natural history (1864)

The Zoologist : a monthly journal of natural history (1867)

The Zoologist : a monthly journal of natural history (1868)

The Zoologist : a monthly journal of natural history (1869)

The Zoologist : a monthly journal of natural history (1870)

The Zoologist : a monthly journal of natural history (1872)

The Zoologist : a monthly journal of natural history (1875)

The Zoologist : a monthly journal of natural history (1878)

The Zoologist : a monthly journal of natural history (1879)

The Zoologist : a monthly journal of natural history (1881)

The Zoologist : a monthly journal of natural history (1882)

The Zoologist : a monthly journal of natural history (1884)

The Zoologist : a monthly journal of natural history (1885)

The Zoologist : a monthly journal of natural history (1888)

The Zoologist : a monthly journal of natural history (1889)

The Zoologist : a monthly journal of natural history (1891)

The Zoologist : a monthly journal of natural history (1894)

The Zoologist : a monthly journal of natural history (1895)

The Zoologist : a monthly journal of natural history (1896)

The Zoologist : a monthly journal of natural history (1897)

The Zoologist : a monthly journal of natural history (1898)

The Zoologist : a monthly journal of natural history (1899)

The Zoologist : a monthly journal of natural history (1903)

The Zoologist : a monthly journal of natural history (1911)

The Zoologist : a monthly journal of natural history (1912)

The Zoologist : a monthly journal of natural history (1915)

Zoology - Packard, A. S. (Alpheus Spring), 1839 -1905 (Holt, 1892)

Zoology - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and Co, 1894)

Zoology - Packard, A. S. (Alpheus Spring), 1839 -1905 (Holt, 1897)

Zoology for high schools and colleges - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and Company, 1886)

Zoology for high schools and colleges - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and Company, 1889)

Zoology for high schools and colleges - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and Company, 1895)

Zoology for high schools and colleges - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and company, 1893)

Zoology for high schools and colleges - Packard, A. S. (Alpheus Spring), 1839 -1905 (H. Holt and Company, 1880)

Zoology for students : a handbook - Royal College of Physicians of Edinburgh. (Daldy, Isbister, 1875)

Zoology : for students and general readers - Packard, A. S. (Alpheus Spring), 1839 -1905 (Henry Holt, 1879)

Zur Fortpflanzungsgeschichte der gesammten Vögel : Ausgearbeitet in den Jahren 1845 bis 1854 ; Einhundert Tafeln colorirter Abbildungen von Vogeleiern - Thienemann, Friedrich August Ludwig, 1793 -1858 (1856)

Zur vergleichenden Anatomie des Brustschulterapparates und der Schultermuskeln. V. Teil, Vögel - Fürbringer, Maximilian, 1846 -1920 (Gustav Fischer, 1902)