A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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... in the structure of this remarkable Polyzoon . All the figures upon the eleven lithographic plates which accompany this volume have been drawn from Nature , and contain careful representations of every species which I have seen .
... in the structure of this remarkable Polyzoon . All the figures upon the eleven lithographic plates which accompany this volume have been drawn from Nature , and contain careful representations of every species which I have seen .
Página 7
General conception of a Polyzoon . 19 ༠ 1 . PLAN OF A POLYZOON . b Fig . 2 . Fig . 1. Exserted . Fig . 2. Retracted . a . Region of mouth , surrounded by tentacles . b . Alimentary canal . c . Anus . d . Nervous ganglion . e .
General conception of a Polyzoon . 19 ༠ 1 . PLAN OF A POLYZOON . b Fig . 2 . Fig . 1. Exserted . Fig . 2. Retracted . a . Region of mouth , surrounded by tentacles . b . Alimentary canal . c . Anus . d . Nervous ganglion . e .
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Another important point , which should be settled at the very outset of our anatomical inquiries , is the exact sense in which we are to use the terms employed to indicate the different aspects of a Polyzoon . This is the more necessary ...
Another important point , which should be settled at the very outset of our anatomical inquiries , is the exact sense in which we are to use the terms employed to indicate the different aspects of a Polyzoon . This is the more necessary ...
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In specimens of this Polyzoon which had been kept for a few days , and occasionally in some just captured , multitudes of minute oval brilliant corpuscles were seen to have been developed in the endocyst throughout its whole extent .
In specimens of this Polyzoon which had been kept for a few days , and occasionally in some just captured , multitudes of minute oval brilliant corpuscles were seen to have been developed in the endocyst throughout its whole extent .
Página 19
The tentacular crown of a Polyzoon consists of two portions , namely , first , a sort of stage or disc ( the lophophore ) ( Pl . II , fig . 24 ; IX , fig . 7 ; X , figs . 3 , 4 , k ) which surrounds the mouth ; and secondly , a series ...
The tentacular crown of a Polyzoon consists of two portions , namely , first , a sort of stage or disc ( the lophophore ) ( Pl . II , fig . 24 ; IX , fig . 7 ; X , figs . 3 , 4 , k ) which surrounds the mouth ; and secondly , a series ...
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A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
A Monograph of the Fresh-Water Polyzoa, Including All the Known Species ... George James Allman Sin vista previa disponible - 2009 |
Términos y frases comunes
action adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella described detected disc distinct Dumortier ectocyst edit endocyst entire epistome examined existence extending external extremity fibres fluid Fredericella fresh-water Polyzoa genera genus Gervais gives Hancock Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens resemblance retraction retractor Rösel seen separated sheath side space species specimens statoblasts stomach stones structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young
Información bibliográfica
| Título | A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign Volumen18 de ¬The Ray Society |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | la Biblioteca Estatal de Baviera |
| Digitalizado | 13 Nov. 2009 |
| Largo | 119 páginas |
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