File:The biology of dragonflies (Odonata or Paraneuroptera) (1917) (20194342480).jpg

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Title: The biology of dragonflies (Odonata or Paraneuroptera)
Identifier: biologyofdragonf00till (find matches)
Year: 1917 (1910s)
Authors: Tillyard, Robin John, 1881-1937
Subjects: Dragon-flies
Publisher: Cambridge (Eng. ) : University Press
Contributing Library: University of California Libraries
Digitizing Sponsor: Internet Archive

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IX) THE RESPIRATORY SYSTEM 187 for a respiratory function. The main-folds were quickly lost, and the beautiful and very regular formation, which we now see, has been formed by constant addition of extra lamellae. In the Sijnthemini, the most archaic of Libellulidae, these still only number twelve in a row. Fig. 78 shews diagrammatically the connection between the three main types. 4. Histology of the Rectal GUIs (fig. 83). All forms of gill have the same histological structure, with
Text Appearing After Image:
Fig. 83. Histology of the rental gill. a. t.s. through base of gill from Acschna hreviityla, Ramb. B. The same through several lamellae of Oordulephya pygmaea Selys ( X 250). bp basal pad; cm circular muscle; hb hypobranchial tissue; lam blades of lamellae, cut at different levels in the one section; pg pigmented epithelial syncytium of gill; tr tracheae. Original. only unimportant differences of detail. The gill consists of the following parts: (1) An external cuticle. This is continuous with the general intima of the hind-gut. It is excessively fine, and covers the gill on both sides. Where it turns over at the free edge of the gill, it is armed with small spines. It is quite colourless.

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  • bookid:biologyofdragonf00till
  • bookyear:1917
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Tillyard_Robin_John_1881_1937
  • booksubject:Dragon_flies
  • bookpublisher:Cambridge_Eng_University_Press
  • bookcontributor:University_of_California_Libraries
  • booksponsor:Internet_Archive
  • bookleafnumber:209
  • bookcollection:cdl
  • bookcollection:americana
  • BHL Collection
Flickr posted date
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7 August 2015

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19 September 2015

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current19:45, 19 September 2015Thumbnail for version as of 19:45, 19 September 20151,306 × 1,108 (285 KB)Fæ (talk | contribs)== {{int:filedesc}} == {{subst:chc}} {{information |description={{en|1=<br> '''Title''': The biology of dragonflies (Odonata or Paraneuroptera)<br> '''Identifier''': biologyofdragonf00till ([https://commons.wikimedia.org/w/index.php?title=Special%3ASea...

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