Prof Karl (Carl) Theodor Ernst von SieboldFRS(For) HFRSE (16 February 1804 – 7 April 1885) was a German physiologist and zoologist. He was responsible for the introduction of the taxa Arthropoda and Rhizopoda, and for defining the taxon Protozoa specifically for single-celled organisms.
Biography
He was born at Würzburg in the Electorate of Bavaria, the son of Elias von Siebild (sic), a professor of obstetrics, and his wife, Sophie von Schaffer. He was educated in Würzburg and the Gymnasium zum Grauen Kloster in Berlin.[1]
He became professor of zoology, comparative anatomy and veterinary science at Erlangen in 1840, professor of zoology and physiology at Freiburg in 1845, professor of physiology at Breslau in 1850, and professor of zoology and comparative anatomy at the Maximilians-Universität in Munich in 1853. In Munich, he later received the additional duties as professor of zoology and director of the zoological and zootomical cabinet.
He died in Munich on 7 April 1885. He was considered “an industrious and critical observer and ... as his biographer justly calls him, the Nestor of German zoology”.[3]
Scientific work
His best-known publication was the Lehrbuch der Vergleichenden Anatomie[4] (Manual of Comparative Anatomy) (1845–48) which he co-edited with Hermann Friedrich Stannius, being largely responsible for the first volume, on invertebrates (see Principal Publications). Siebold was the originator, after Cuvier, of the first important reforms in systematic zoology, and established the unicellular nature of the Protozoa, which he first combined into a phylum. He introduced the taxa Arthropoda and Rhizopoda.[5][6][7] In 1848, together with R. A. von Kölliker he founded the leading biological journal Zeitschrift für Wissenschaftliche Zoologie (Journal for Scientific Zoology), which he edited until his death. This was long the leading morphological and anatomical journal of Europe.
His collection of worm specimens was purchased for the Helminth Collection of the Natural History Museum in London in 1851. His fish collection (1804-1855), specializing in freshwater fishes of Bavaria, was deposited at the Zoological Cabinet of the Bavarian State in 1863, and though most were lost in WWII, some specimens remain at the Zoologische Staatssammlung in Munich.
Family
He married twice: in 1831 to Fanny Noldechen (d.1854) and in 1855 to Antoynie Noldechen (her younger sister).[12]
His father was cousin (some say younger brother) to the naturalist and physician Philipp Franz von Siebold.
Principal publications
Observationes de Salamandris et Tritonibus (1828)
Beiträge zur Naturgeschichte der wirbellosen Thiere (Contributions to the natural history of invertebrates; Danzig, 1839)
Lehrbuch der vergleichenden Anatomie der Wirbellossen Thiere (Manual of comparative anatomy of invertebrates; Berlin, 1848, by C. T. E. von Siebold), being the first volume of Lehrbuch der Vergleichenden Anatomie (Manual of comparative anatomy; edited by C. T. E. von Siebold and H. Stannius, 1846–48); however, it was published after the second volume, Lehrbuch der vergleichenden Anatomie der Wirbelthiere (Manual of comparative anatomy of vertebrates; Berlin, 1846, by H. Stanius), leading to confusion regarding the correct date of the works[13]
Ueber die Band- und Blasenwürmer (1854)
Wahre Parthenogenesis bei Schmetterlingen und Bienen (True parthenogenesis in moths and bees; 1856; English trans. 1857)
Die Süsswasserfische Mitteleuropas (Freshwater fish of Central Europe; Leipzig, 1863) Here he points out some of the hybrid forms.
Beiträge zur Parthenogenesis der Arthropoden (Contributions on the parthenogenesis of Arthropods; 1871) Here he established the fact of parthenogenesis in two wasps, in a saw fly, in several moths, and in certain phyllopod crustacea.
^Lehrbuch ver vergleichenden Anatomie der Wirbellossen Thiere (Berlin, 1845), being the first volume of Lehrbuch der Vergleichenden Anatomie (edited by C. T. E. von Siebold and H. Stannius, 1845-48)
^Siebold, C. Th. v. (1848). Lehrbuch der vergleichenden Anatomie der Wirbellosen Thiere [Textbook of Comparative Anatomy of Invertebrate Animals] (in German). Berlin, (Germany): Veit & Co. p. 4. From p. 4: "Arthropoda. Thiere mit vollkommen symmetrischer Form und gegliederten Bewegungsorganen. Centralmasse des Nervensystems besteht aus einem den Schlund umfassenden Ganglienring und einer von diesem ausgehenden Bauch-Ganglienkette." (Arthropoda. Animals with completely symmetric form and articulated organs of movement. Central mass of the nervous system consists of a ring of ganglia surrounding the esophagus and an abdominal chain of ganglia extending from this [ring of ganglia].)
^(Siebold, 1848), p. 11. On p. 11, von Siebold distinguished Rhizopoda from Infusoria: "Klasse der Rhizopoden. Die Bewegungswerkzeuge bestehen aus verästelten, stets veränderlichen und gänzlich zurückziehbaren Fortsätzen." (Class of the Rhizopoda. The means of movement consist of dendritic, constantly changing and completely retractable extensions.)
^K. T. E. von Siebold (1856) Wahre parthenogenesis bei Schmetterlingen und Bienen [True parthenogenesis in moths and bees] Leipzig, (Germany): Wilhelm Engelmann ; translated by W. S. Dallas as On a true parthenogenesis in moths and bees
^Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN978-1-4214-0135-5. ("Siebold, K.T.E.", p. 243).
^Günther A (1860). "Contributions to a Knowledge of the Reptiles of the Himalaya Mountains". Proc. Zool. Soc. London1860: 148-175. (Herpetoreas sieboldii, new species, pp. 156-157; "This species is called after Prof. von Siebold of Munich", p. 157).
