A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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... and magnified , and I have never omitted to draw the polypide as well as the cćnoecium , believing that the latter will by itself convey but a very imperfect idea of the real character of these beautiful little animals .
... and magnified , and I have never omitted to draw the polypide as well as the cćnoecium , believing that the latter will by itself convey but a very imperfect idea of the real character of these beautiful little animals .
Página 6
In this work he proposed a new classification of the so - called polypes , dividing the entire group into two great sections — the Anthozoa and the Bryozoa ; the former embraced the true radiate forms , the latter corresponded to the ...
In this work he proposed a new classification of the so - called polypes , dividing the entire group into two great sections — the Anthozoa and the Bryozoa ; the former embraced the true radiate forms , the latter corresponded to the ...
Página 9
... form under the conception of an ideal archetype , and finding the heart occupying one side , and the great nervous centres placed upon the opposite , he gives to the former region the name of “ hćmal , ” and to the latter that of ...
... form under the conception of an ideal archetype , and finding the heart occupying one side , and the great nervous centres placed upon the opposite , he gives to the former region the name of “ hćmal , ” and to the latter that of ...
Página 11
During the exsertion of the polypide , the invaginated portion of the endocyst is carried out with the latter , thus undergoing a process of evertion , which , however , in all the fresh - water species , is but partial , a portion of ...
During the exsertion of the polypide , the invaginated portion of the endocyst is carried out with the latter , thus undergoing a process of evertion , which , however , in all the fresh - water species , is but partial , a portion of ...
Página 16
7 , f ) of considerable length leads downwards to the stomach ; it becomes gradually narrower as it approaches the latter , into which it opens by a very distinct conical projection ( Pl . III , fig . 7 , f ) .
7 , f ) of considerable length leads downwards to the stomach ; it becomes gradually narrower as it approaches the latter , into which it opens by a very distinct conical projection ( Pl . III , fig . 7 , f ) .
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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
adherent admit Alcyonella alimentary alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cćnćcium canal 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 Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organs 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 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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