Das Tierreich - Heck, Ludwig, 1860 -1951 (W. Pauli, 1894)

Die Tierwelt der Schweiz in der Gegenward und in der Vergangenheit. Band 1, Wirbeltiere - Goeldi, Emílio Augusto, 1859 -1917 (A. Francke, 1914)

Tijdschrift der Nederlandsche Dierkundige Vereeniging - Nederlandsche dierkundige vereeniging. (Brill, 1882)

Tijdschrift der Nederlandsche Dierkundige Vereeniging - Nederlandsche dierkundige vereeniging. (Brill, 1885)

Tijdschrift der Nederlandsche Dierkundige Vereeniging - Nederlandsche dierkundige vereeniging. (Brill, 1902)

Tijdschrift der Nederlandsche Dierkundige Vereeniging - Nederlandsche dierkundige vereeniging. (Brill, 1904)

Tijdschrift der Nederlandsche Dierkundige Vereeniging - Nederlandsche dierkundige vereeniging. (Brill, 1910)

Tijdschrift der Nederlandsche Dierkundige Vereeniging - Nederlandsche dierkundige vereeniging. (Brill, 1913)

Tijdschrift der Nederlandsche Dierkundige Vereeniging - Nederlandsche dierkundige vereeniging. (Brill, 1914)

Tijdschrift der Nederlandsche Dierkundige Vereeniging - Nederlandsche dierkundige vereeniging. (Brill, 1916)

Tijdschrift der Nederlandsche Dierkundige Vereeniging - Nederlandsche dierkundige vereeniging. (Brill, 1917)

Tijdschrift der Nederlandsche Dierkundige Vereeniging - Nederlandsche dierkundige vereeniging. (Brill, 1922)

Tilapiine fishes of the genera Sarotherodon, Oreochromis, and Danakilia - British Museum (Natural History) (British Museum (Natural History), 1983)

Tooth replacement phenomena in the lower vertebrates - Royal Ontario Museum. (Royal Ontario Museum, 1960)

A tour in Sutherlandshire : with extracts from the field-books of a sportsman and naturalist - Harvie-Brown, J. A. (John Alexander), 1844 -1916 (Douglas, 1884)

A tour in Sutherlandshire, with extracts from the fieldbooks of a sportsman and naturalist. By Charles St. John... - St. John, Charles, 1809 -1856 (J. Murray, 1849)

Trabajos del Museo de Ciencias Naturales. Serie zoológica - Museo Nacional de Ciencias Naturales (Spain) (El Museo, 1919)

Traité de paléontologie : ou, Histoire naturelle des animaux fossiles considérés dans leurs rapports zoologiques et géologiques - Pictet, François Jules, 1809 -1872 (J.-B. Baillière, 1854)

Traité de zoologie - Claus, Carl, 1835 -1899 (F. Savy, 1884)

Traité de zoologie - Perrier, Edmond, 1844 -1921 (Masson, 1903)

Transactions - American Microscopical Society (1902)

Transactions & Proceedings of the Perthshire Society of Natural Science - Perthshire Society of Natural Science. (1929)

Transactions and proceedings and report of the Royal Society of South Australia (Incorporated) - Royal Society of South Australia (W.C. Rigby, 1907)

Transactions and proceedings and report of the Royal Society of South Australia (Incorporated) - Royal Society of South Australia (W.C. Rigby, 1908)

Transactions and proceedings of the New Zealand Institute - New Zealand Institute. (New Zealand Institute, 1882)

Transactions and proceedings of the New Zealand Institute - New Zealand Institute. (New Zealand Institute, 1889)

Transactions and proceedings of the New Zealand Institute - New Zealand Institute. (New Zealand Institute, 1891)

Transactions of the American Philosophical Society - American Philosophical Society. (1871)

Transactions of the Canadian Institute - Canadian Institute (1849-1914) (Canadian Institute, 1899)

Transactions of the Canadian Institute - Canadian Institute (1849-1914) (Canadian Institute, 1914)

Transactions of the Connecticut Academy of Arts and Sciences - Connecticut Academy of Arts; Sciences. (Published by the Academy, 1877)

Transactions of the Edinburgh Field Naturalists' and Microscopical Society - Edinburgh Field Naturalists'; Microscopical Society. (The Club, 1898)

Transactions of the Hertfordshire Natural History Society and Field Club - Hertfordshire Natural History Society; Field Club. (The Club, 1879)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1994)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 1997)

Transactions of the Illinois State Academy of Science - Illinois State Academy of Science. (Illinois State Academy of Science [etc.], 2002)

Transactions of the Kentucky Academy of Science - Jillson, Willard Rouse, 1890 - (Kentucky Academy of Science, 1979)

Transactions of the Kentucky Academy of Science - Jillson, Willard Rouse, 1890 - (Kentucky Academy of Science, 1997)

Transactions of the Linnean Society of London. Zoology - Linnean Society of London. ([The Society], 1875)

Transactions of the Linnean Society of London. Zoology - Linnean Society of London. ([The Society], 1898)

Transactions of the Linnean Society of London. Zoology - Linnean Society of London. ([The Society], 1903)

Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne - Tyneside Naturalists' Field Club. (F. & W. Dodsworth [et al.], 1888)

Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne - Tyneside Naturalists' Field Club. (F. & W. Dodsworth [et al.], 1890)

Transactions of the Norfolk and Norwich Naturalists' Society - Norfolk; Norwich Naturalists' Society. (Norfolk and Norwich Naturalists' Society, 1869)

Transactions of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1872)

Transactions of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1885)

Transactions of the Royal Society of Edinburgh - Royal Society of Edinburgh. (Royal Society of Edinburgh, 1890)