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Svenska Spindlar

Title page of the 1757 edition of Svenska Spindlar

The book Svenska Spindlar or Aranei Svecici (Swedish and Latin, respectively, for "Swedish spiders") was one of the major works of the Swedish arachnologist and entomologist Carl Alexander Clerck and appeared in Stockholm in the year 1757. It was the first comprehensive book on the spiders of Sweden and one of the first regional monographs of a group of animals worldwide. The full title of the work was Svenska Spindlar uti sina hufvud-slägter indelte samt under några och sextio särskildte arter beskrefne och med illuminerade figurer uplysteAranei Svecici, descriptionibus et figuris æneis illustrati, ad genera subalterna redacti, speciebus ultra LX determinati,[1] and included 162 pages of text (eight pages were unpaginated) and 6 colour plates. It was published in Swedish, with a Latin translation printed in a slightly smaller font below the Swedish text.

Clerck described in detail 67 species of Swedish spider species,[2] and for the first time in a zoological work consistently applied binomial nomenclature, which had been proposed by Carl Linnaeus in his 1753 work Species Plantarum for botanical names, and which he presented in 1758 in the 10th edition of his work Systema Naturae for more than 4,000 animal species.

Contents

  • Presentation of the spiders 1
  • Impact and importance of the work 2
  • Year 1757 or 1758? 3
  • Species 4
  • Footnotes 5
  • References 6

Presentation of the spiders

Araneus angulatus in Svenska Spindlar
Description of A. angulatus (page 22)
Figure of male and female A. angulatus (plate 1)

Clerck explained in the last (9th of the 2nd part) chapter of his work that in contrast to previous authors he used the term "spider" in the strict sense, for animals possessing eight eyes and separated prosoma and opisthosoma, and that his concept of this group of animals did not include Opiliones (because they had two eyes and a broadly joined prosoma and opisthosoma) and other groups of arachnids.

For all spiders Clerck used a single generic name (Araneus), to which was added a specific name which consisted of only one word. Each species was presented in the Swedish text with their Latin scientific names,[3] followed by detailed information containing the exact dates when he had found the animals, and a detailed description of eyes, legs and body. The differences between the sexes were also described. Each species was illustrated in impressively accurate drawings printed on coloured copper plates which were bound at the end of the volume.

Impact and importance of the work

Because of the exceptionally thorough treatment of the spider species, the scientific names proposed by Clerck (which were adopted by Carl Linnaeus in his Systema Naturae in 1758 with only minor modifications) had traditionally been recognized by arachnologists as binomial and available. In 1959 the ICZN Commission decided that Clerck's work should be available for zoological nomenclature,[4] but the International Code of Zoological Nomenclature did not mention Clerck's work.[Note 1] Only after 1999 was this officially recognized in the Code.[5] This means that in case of doubt the spelling of a spider name as from Clerck's 1757 work has priority over that proposed by Linnaeus in 1758 (an example is Araneus instead of Aranea),[6] and that Clerck's spiders were the first animals in modern zoology to have obtained an available scientific name in the Linnean system.[5]

Year 1757 or 1758?

In the late 1800s, Clerck's 1757 work was commonly accepted as the first application of binomial nomenclature to spiders.[7] In 1959 the ICZN Commission ruled that the date 1758 should be used for Clerck's names,[4] this date 1758 was repeated to apply to Clerck's names in the 4th edition of the International Code of Zoological Nomenclature in 1999.[5]

In a complete binomial name with author and year, the year corresponds to the year of publication of the original source. Since 2000, the ICZN Code includes an exception of this very basic rule.[8] From the beginning on the new provision in the Code has been misunderstood by many researchers who believed that by setting the date for Clerck's work to 1758 (overriding its true date 1757) and the date for Systema Naturae to 1 January 1758, the priority was changed. In 2007, a case was even brought before the Commission because the researchers were no longer sure whether the generic name should be Araneus Clerck or Aranea Linnaeus.[9] In their judgement the year 1758 for Clerck's Svenska Spindlar could be interpreted in a way that the Linnean work from 1 January 1758 should have priority. In 2009 the Commission saw itself forced to repeat once more, although this was already explicit in the Code's Article 3.1, that the name Araneus established by Clerck shall have priority and be used for the genus.[10]

Species

Svenska Spindlar lists the following 67 species of spider; their current identities follow Platnick (2000–2010).[11]

Chapter 2 (Araneidae, Tetragnathidae)

Chapter 3 (Theridiidae, Nesticidae, Linyphiidae)

Chapter 4 (Agelenidae, Clubionidae)

Chapter 5 (Lycosidae, Pisauridae)

Chapter 6 (Salticidae)

Chapter 7 (Thomisidae, Philodromidae, Sparassidae)

Chapter 8 (Cybaeidae)

Footnotes

  1. ^ The third edition of the ICZN Code (1960) restricted binomial publications to works after 1757.

References

  1. ^ C. Clerck (1757). Svenska Spindlar uti sina hufvud-slågter indelte samt under några och sextio särskildte arter beskrefne och med illuminerade figurer uplyste / Aranei Svecici, descriptionibus et figuris æneis illustrati, ad genera subalterna redacti, speciebus ultra LX determinati. Stockholm: Laurentius Salvius. pp. [1-8], 1-154, pl. 1-6. 
  2. ^ AnimalBase list of all 66 names of species established by Clerck 1757.
  3. ^ Eugene William Oates & Tord Thorell (1895). "Introduction". Descriptive Catalogue of the Spiders of Burma based upon the Collection made by Eugene W. Oates and Preserved in the British Museum.  
  4. ^ a b  
  5. ^ a b c  
  6. ^ "Rules of Nomeclature in Zoology". Natural Science 8. Macmillan & Co. 1896. p. 255. 
  7. ^ Transactions of the Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne, Volume 13, Natural History Society of Northumberland, Durham, and Newcastle-upon-Tyne, Tyneside Naturalists' Field Club, 1896, Pg. 61
  8. ^  
  9. ^ N. J. Kluge (2007). Latreille, 1804 (Arachnida, Araneae): proposed conservation"Tegenaria Clerck, 1758 and Araneus"Case 3371. Araneidae Clerck, 1758, ( 
  10. ^  
  11. ^   Agelenidae, Araneidae, Clubionidae, Linyphiidae, Lycosidae, Nesticidae, Philodromidae, Pisauridae, Salticidae, Sparassidae, Tetragnathidae, Theridiidae and Thomisidae
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