Author:
Publisher:
ISBN:
Category : Embryology
Languages : en
Pages : 336

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Author: Franz Karl Julius Keibel
Publisher:
ISBN:
Category : Anatomy, Comparative
Languages : en
Pages : 60

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Author:
Publisher:
ISBN:
Category : Embryology
Languages : de
Pages : 134

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Author: Franz Keibel
Publisher:
ISBN:
Category : Deer
Languages : de
Pages :

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Author:
Publisher:
ISBN:
Category :
Languages : de
Pages :

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Book Description

Author: Franz Keibel
Publisher:
ISBN:
Category : Anatomy, Comparative
Languages : de
Pages : 166

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Book Description

Author: Franz Keibel
Publisher:
ISBN:
Category : Anatomy, Comparative
Languages : de
Pages : 54

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Book Description

Author: Franz Keibel
Publisher:
ISBN:
Category : Anatomy, Comparative
Languages : de
Pages : 148

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Author: Franz Keibel
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: F. Keibel
Publisher: Forgotten Books
ISBN: 9780656215058
Category : Science
Languages : en
Pages : 50

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Book Description
Excerpt from Normentafeln Zur Entwicklungsgeschichte Der Wirbeltiere, Vol. 10: Normal Plates of the Development of Lepidosiren Paradoxa and Protopterus Annectens Conspicuous features in these stages are the cement organ a crescentic structure on the ventral side and the external gill rudiments situated on visceral arches III - VI. About stage 23 in Lepidosiren a vascular network is seen over the surface of the yolk, its cavities filled with colourless blood there being for some time after its appearance no haemoglobin present. About the time of hatching (stage 27) the larva has a somewhat tadpole-like shape the hinder tail ]ike region of the trunk being flexed ventrally. In Protopterus a larger proportion of the yolk is con centrated in the anterior swollen part which as a consequence bulges more prominently and the rudiments of various organs external gills and eyes are also seen to be relatively larger than in Lepidosiren. Within a short space of time after hatching (stage 28) the trunk becomes straightened out and the pinnae of the external gills appear as two rows of little knobs on their external surface. The myotomes are seen to be growing actively in dorsiventral direction. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.