Systema natvræ per regna tria natvræ : secvndum classes, ordines, genera, species, cvm characteribus, differentiis, synonymis, locis - Gmelin, Johann Friedrich, 1748 -1804 (Typis Academicis, 1793)

Systema natvrae per regni tria natvrae secvndvm classes, ordines, genera, species, cvm characteribvs, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Io. Iac. Cvrt, 1760)

A systematic catalogue of British vertebrate animals - Jenyns, Leonard, 1800 -1893 (Printed by W. Metcalfe, for J. & J.J. Deighton, and T. Stevenson, and Longman, London, 1835)

Systematic results of the study of North American land mammals during the years 1901 and 1902 - Miller, Gerrit S. Jr. (Gerrit Smith), 1869 -1956 (Society of Natural History, 1903)

Systematic results of the study of North American land mammals to the close of the year 1900 - Miller, Gerrit S. Jr. (Gerrit Smith), 1869 -1956 (Society of Natural History, 1901)

A systematic revision of Macrotus (Chiroptera) - Anderson, Sydney, 1927 -2018 (American Museum of Natural History, 1965)

Systematisch-summarische Uebersicht der neuesten zoologischen Entdeckungen in Neuholland und Afrika : nebst zwey andern zoologischen Abhandlungen - Meyer, Friedrich Albrecht Anton, 1768 -1795 (im Verlage der Dykischen Buchhandlung, 1793)

Systematische Uebersicht der Thiere Brasiliens : welche während einer Reise durch die Provinzen von Rio de Janeiro und Minas geraës gesammlt oder beobachtet Wurden - Burmeister, Hermann, 1807 -1892 (G. Reimer, 1854)

Systematisches Verzeichniss der Macrolepidopteren von Nord-Amerika - Gerhard, Bernhard. (1878)

Systematisk öfversigt af de gnagande däggdjuren, glires - Lilljeborg, Wilhelm, 1816 -1908 (Kongl. Akad. boktryckeriet, 1866)

Tableau des divisions, sous-divisions, ordres et genres des Mammifères - La Cépède, M. le comte de (Bernard Germain Etienne de La Ville sur Illon), 1756 -1825 (chez Plassan, 1801)

Tableau élémentaire de l'histoire naturelle des animaux - Cuvier, Georges, baron, 1769 -1832 (Baudouin, imprimeur, 1798)

Tabula affinitatum animalium olim academico specimine edita : nunc uberiore commentario illustrata cum annotationibus ad historiam naturalem animalium augendam facientibus - Hermann, Johann, 1738 -1800 (Impensis Joh. Georgii Treuttel, Bibliopolae, 1783)

Tabular view of the primary divisions of the animal kingdom, intended to serve as an outline of an elementary course of recent zoology (cainozoology), or the natural history of existing animals - Grant, Robert Edmond, 1793 -1874 (Walton and Maberly, 1861)

The taxidermist (Martin & Mignin, 1891)

Tekhno-Botanīcheskiǐ Slovar, ia Latinskom i Rossilskom Yazuikakh : [Latin-Russian Botanical Lexicon.] - Martȳnov, Ǐvan Ǐvanovīch. (1820)

Ten years in Sweden : being a description of the landscape, climate, domestic life, forests, mines, agriculture, field sports and fauna of Scandinavia - Wheelwright, H. W. (Horace William) 1815 -1865 (Groombridge and sons, 1865)

Természetrajzi Füzetek kiadja a Magyar nemzeti Muzeum - Magyar Nemzeti Múzeum. (Franklin-társulat nyomdája [etc.], 1887)

Terry Badlands nongame survey and inventory : final report (May 1979-July 1980) - United States. Bureau of Land Management. (Wildlife Division], 1980)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1950)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1958)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1960)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1962)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1970)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1977)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1981)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1987)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1988)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1989)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1993)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1994)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2000)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2001)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 2004)

The Texas journal of science - Texas Academy of Science. (Texas Academy of Science, 1982)

Text-book of geology - Geikie, Archibald, 1835 -1924 (Macmillan and Co, 1882)

Text-book of palaeontology - Eastman, Charles Rochester, 1868 -1918 (Macmillan, 1925)

Text book of vertebrate zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt and Company, 1899)

Text book of vertebrate zoology - Kingsley, J. S. (John Sterling), 1854 -1929 (H. Holt, 1899)

Text-book of zoology - Schmeil, O. (Otto), 1860 -1943 (A. and C. Black, 1901)

A textbook of medical entomology - Cragg, Francis William, 1882 -1924 (Christian Literature Society for India, 1913)

Teysmannia (G. Kolff, 1901)

Teysmannia (G. Kolff, 1904)

Teysmannia (G. Kolff, 1915)

Teysmannia (G. Kolff, 1916)

Thiere der Heimath : Deutschlands Sa¨ugethiere und Vo¨gel - Müller, Adolf, 1821 -1910 (Verlag von Theodor Fischer, 1882)

Thiere der Heimath : Deutschlands Säugethiere und Vögel - Müller, Adolf, 1821 -1910 (Verlag von Theodor Fischer, 1840)

Das thierleben in Schönbrunn - Gerlanch, Martin, (Gerlach, 1904)

Das Thierreich eingetheilt nach dem Bau der Thiere als Grundlage ihrer Naturgeschichte und der vergleichenden Anatomie - Cuvier, Georges, baron, 1769 -1832 (J.S. Cotta, 1821)

Das Thierreich eingetheilt nach dem Bau der Thiere als Grundlage ihrer Naturgeschichte und der vergleichenden Anatomie - Cuvier, Georges, baron, 1769 -1832 (J.S. Cotta, 1825)