File:Bulletin de l'Acadmie impriale des sciences de St.-Ptersbourg (20431138105).jpg

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Title: Bulletin de l'Acadmie impriale des sciences de St.-Ptersbourg
Identifier: bulletindelacadm26impe (find matches)
Year: [1] (s)
Authors: Imperatorskaia Akademiia nauk (Russia)
Subjects: Science; Science -- Soviet Union
Publisher: (St. -Ptersbourg), Acadmie impriale des sciences
Contributing Library: New York Botanical Garden, LuEsther T. Mertz Library
Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden

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V — Vélum; Vu — Voruieren; Schi/ — Schalfugrube; Ns - N;ib- rungssack : 31^ = Mesodermzellen. Ausserordentlich bemerkenswerth ist die Entstehung der von Ganin entdeckten einzelligen Vornieren: eine grosse Velarzelle wird jederseits unter das dorsale Velum-Ende in die Leibeshôhle hineingeschoben (Fig. 8) M. Ganin «Zur Lehre von den Keimbliittern bei deu Weich- thieren». Warschaucr T'niversitiitsberichte, 1873, .Vj 1. P.ag. ll'i bis 140. (Russisch.) 9) Bûtschli «EatAviclielimgsgcscbichtIiche Beitriige». Zeitscbr. fiir wiss. Z., Bd. XXIX, 1877, Pag. 227, Anmerkimg. 10) E. Lankestrr «Oliservalions on the dcvelopment of the Pondsnail (Lymnneus sUuinalis) etc.» Quart. .Journ. of microsc. se. 1874; pag. ^82.
Text Appearing After Image:
Fig. 7. rnngsgange mit kleinen Trichtern. Eines der merk- wurdigsten Beispiele der hohen Differenzirung eines einzelligen Gebildes. Nach Fol") sind die Vornieren vielzellig — ich muss dies auf Grund einer grossen Anzahl von Schnitten entschieden in Abrede stellen. Die beigezeichnete Fig. 7 ist eine getreue Abbildung meiner Priiparate. Somit kommen wir zu einer voll- kommeneuBestatigungder Ganin'schenUntersuchun- gen iiber diesen Gegeiistand. Ob die Vornieren eine Zeitlang neben der Niera fortexistiren, oder ob sie schon vor dem Auftreten der Letztcn atrophiren, konnte icli nicht mit Bestimmtheit entscheiden; Jedenfalls sind sie schon lange vor dem Ausschliipfen des jungen Thieres nicht mehr vorhanden. 2. Sfhalengriibe und Manlel, Die Schalengrube oder Schalendriise («shell — gland» R. Lank., «invagination préconchilienne» H. Fol) ist bei den Siisswasserschne- cken zum ersten )\Ial von Ganin als solche beschrie- ben worden. Die fruheren Autoren hielten dies Ge- bilde fiir die Aftereinstiilpung '"). Schon auf dem Ga- strula-Stadium liisst sich eine dem Urmunde gegen- 11) H. Fol «Sur le liévelniipnmeiit des Gastéropodes pulmonés.» Comptes rendus. T. LXXXl, 187.5. 1'. .-.23—526. 12) lu upuerer Zeit veitiel 11. l'abl lu denselbcu l(dilor.

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Flickr tags
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  • bookid:bulletindelacadm26impe
  • bookyear:
  • bookdecade:
  • bookcentury:
  • bookauthor:Imperatorskaia_Akademiia_nauk_Russia_
  • booksubject:Science
  • booksubject:Science_Soviet_Union
  • bookpublisher:_St_Ptersbourg_Acadmie_impriale_des_sciences
  • bookcontributor:New_York_Botanical_Garden_LuEsther_T_Mertz_Library
  • booksponsor:The_LuEsther_T_Mertz_Library_the_New_York_Botanical_Garden
  • bookleafnumber:54
  • bookcollection:biodiversity
  • bookcollection:NY_Botanical_Garden
  • bookcollection:americana
  • BHL Collection
  • BHL Consortium
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9 August 2015



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current19:05, 21 September 2015Thumbnail for version as of 19:05, 21 September 2015354 × 358 (19 KB) (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Title''': Bulletin de l'Acadmie impriale des sciences de St.-Ptersbourg<br> '''Identifier''': bulletindelacadm26impe ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&pro...

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