Sveriges och Norges fiskar / af W. Lilljeborg - Lilljeborg, Wilhelm, 1816 -1908 (1881)

Sveriges och Norges fiskar - Lilljeborg, Wilhelm, 1816 -1908 (W. Schultz, 1891)

Sveriges och Norges ryggradsdjur I. Däggdjuren - Lilljeborg, Wilhelm, 1816 -1908 (1871)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1975)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1978)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1980)

Syllogeus - National Museum of Natural Sciences (Canada) (National Museum of Natural Sciences, 1982)

Synonymia piscium Graeca et Latina emendata, aucta atque illustrata : Sive Historia piscium naturalis et literaria ab Aristotelis usque aevo ad seculum XIII deducta duce Synonymia piscium Petri Artedi - Schneider, Johann Gottlob, 1750 -1822 (Weidmannianae, 1789)

Synopsis methodica animalium invertebratorum pedemontii fossilium - Sismonda, Eugenio, 1815 -1870 (Typis Regiis, 1842)

Synopsis novorum, generum, specierum et varietatum, testaceorum viventium anno 1834 promulgatorum, adjectis iis quae in diariis societatis zoologicae Londinensis ab anno 1830 editis relata sunt. Supplementi loco ad. ill. Wiegmann historiae naturalis promtuarium - Müller, Th. (F. Nicolai, 1836)

Synopsis of biological data on frigate tuna, Auxis thazard, and bullet tuna, A. rochei - United States. National Marine Fisheries Service. (U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 1981)

Synopsis of biological data on the rock crab, Cancer irroratus Say - United States. National Marine Fisheries Service. (National Marine Fisheries Service, 1979)

A synopsis of natural history: embracing the natural history of animals, with human and general animal physiology, botany, vegetable physiology and geology - Wyatt, Thomas, A. M. (T. Wardle, 1839)

A synopsis of the animal kingdom : together with a laboratory practicum of invertebrate zoölogy / by Harris H. Wilder - Wilder, Harris Hawthorne, 1864 -1928 (1894)

Synopsis of the classification of the animal kingdom - Nicholson, Henry Alleyne, 1844 -1899 (W. Blackwood, 1882)

Synopsis of the contents of the British Museum - British Museum (Woodfall, 1842)

Synopsis of the edible fishes at the Cape of Good Hope - Pappe, L. (Ludwig), 1803 -1862 (Van de Sandt de Villiers & Tier, 1853)

A synopsis of the fishes of North America - Storer, David Humphreys, 1804 -1891 (Metcalf, 1846)

Synopsis of the fishes of North America - Jordan, David Starr, 1851 -1931 (Govt. print. off, 1882)

Synopsis of the fishes of North America - Jordan, David Starr, 1851 -1931 (G.P.O, 1882)

Synopsis piscium Cubensium - Poey, Felipe, 1799 -1891 ([s.n, 1863)

A synoptic text-book of zoölogy, for colleges and schools - Weysse, Arthur Wisswald, 1867 - (Macmillan, 1904)

System of ophthalmology - Duke-Elder, Stewart, Sir, 1898 -1978 (Mosby, 1958)

Systema helminthum / auctore Carolo Mauritio Diesing ... Sumptibus Academiae caesareae scientiarum - Diesing, Karl Moritz, 1800 -1867 (W. Braumüller, 1851)

Systema naturæ in quo naturae regna tria, secundum classes, ordines, genera, species, systematice, proponuntur - Linné, Carl von, 1707 -1778 (Apud G. Kiesewetter, 1740)

Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Typis Ioannis Thomae, 1767)

Systema naturae, per regna tria naturae : secundum classes, ordines, genera, species cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Typis Ioannis Thomae, 1767)

Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis - Linné, Carl von, 1707 -1778 (Typis Ioannis Thomae von Trattner, 1767)

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