Stefano Delle Chiaje

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Stefano Delle Chiaje
Plate from the work "Testacea utriusque Siciliane" by Poli and Delle Chiaje

Stefano Delle Chiaje (born April 25, 1794 in Teano , † July 22, 1860 in Naples ) was an Italian doctor and naturalist.

Live and act

Delle Chiaje studied medicine in Naples from 1812 . Here he was a student of Giuseppe Saverio Poli . Together with this he began to scientifically document the molluscs of the Kingdom of the Two Sicilies . In 1818 he completed his medical degree, but devoted himself more to scientific natural research and his academic career.

In 1822 he joined the Regio Istituto d'incoraggiamento alle scienze naturali (Royal Institute for the Promotion of Natural Sciences). Here he initially studied comparative anatomy and established relationships. From 1834 he became a librarian and from 1855 until his death General Secretary of this institute. On the advice of his sponsor Poli, he wrote a voluminous work on marine invertebrates. This work made him known as a naturalist. In this work he was the first to describe the echinoderm's blood capillary system. Karl Ernst von Baer confirmed this discovery.

In 1822 Delle Chiaje took over the chair of anatomical pathology from the late D. Cutugno. Here he first dealt with questions of teratology . But then his scientific interests changed and he turned to medicinal plant research. From 1825, the year his patron Giuseppe Saverio Poli died, Delle Chiaje returned to zoological issues. He published a work on worm diseases in humans. In this work he still represented the spontaneous generation of worms with reference to Jean-Baptiste de Lamarck .

The great work of the later years is the description of the invertebrates of Sicily, of which unfortunately only a few copies have been published. As a zoologist, he was a specialist in the taxonomy of the invertebrates of the Kingdom of Naples. From 1846 to 1860 he worked as curator of the "Museo di Anatomia Umana" in Naples.

Awards

In 1842 Delle Chiaje became an associate member of the Accademia Nazionale delle Scienze in Rome. On October 15, 1844 Stefano Delle Chiaje was given the academic surname “Ever. Home ”as a member ( matriculation no. 1537 ) in the Leopoldina .

Rating

From 1854 Delle Chiaje suffered from a progressive liver disease, which finally let him die on July 22nd, 1860 after increasing paralysis. His biographer in the Dizionario Biografico degli Italiani Federico Di Trocchio describes Delle Chiaje as a tireless worker who was torn between various scientific topics by his own curiosity and his environment. According to Di Trocchio, his writings are sometimes characterized by an occasional character and sometimes by a lack of depth. According to Di Trocchio, Delle Chiaje “achieved more fame in life than he should have been allowed to”. Nonetheless, he was a great teacher. Above all, he has made significant contributions to biological taxonomy. Among other things, he discovered six types of sea cucumber, a type of leech that he named Hirudo sebetia , and differentiated the annelid genus Siphunculus into the types nudus and saccatus . In botany, he described a new species of cyclamen, which he named in honor of Giuseppe Saverio Poli Cyclamen Poli .

Others

The name abbreviation for Stefano Delle Chiaje in the International Plant Index is Delle Chiaje and not Chiaje (!). The latter abbreviation is found more often in the zoological specialist literature.

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  • Federico Di Trocchio (Dizionario Biografico degli Italiani, Vol 38, 1990): Delle Chiaie, Stefano. 1990, accessed April 21, 2019 (Italian).

Web links

Individual evidence

  1. a b c d e f g h i j k l m n o p Federico Di Trocchio: Delle Chiaie, Stefano.
  2. See: Testacea utriusque Siciliane eorumque istoria et antome tabulis aeneis, 3 vols., 1791–1827.
  3. Memorie sulla storia e notomia degli animali senza vertebre del Regno di Napoli, Naples 1823-30.
  4. See: Iconografia ed uso delle piante medicinali o sia Trattato di farmacologia vegetabile, 3 vols., Naples 1824-1825.
  5. See: Elmintografia umana, ossia trattato intorno agli Entozoi ed a 'morbi verminosi, 1825.
  6. Descrizione e notomia degli animali invertebrati della Sicilia Citeriore, Naples 1841-1844
  7. ^ Johann Daniel Ferdinand Neigebaur : History of the Imperial Leopoldino-Carolinian German Academy of Natural Scientists during the second century of its existence . Friedrich Frommann, Jena 1860, directory of the members of the academy, according to the chronological order, p. 271 ( archive.org ).
  8. ^ Willi Ule : History of the Imperial Leopoldine-Carolinian German Academy of Natural Scientists during the years 1852–1887 . With a look back at the earlier times of its existence. In commission at Wilh. Engelmann in Leipzig, Halle 1889, supplements and additions to Neigebaur's history, p. 183 ( archive.org ).
  9. See: ipni.org