A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Página 12
... whole extent of the endocyst . I have even succeeded in separating this network as a continuous layer . There can be no doubt that these fibres of the endocyst are muscular , and that it is to their presence that the high degree of ...
... whole extent of the endocyst . I have even succeeded in separating this network as a continuous layer . There can be no doubt that these fibres of the endocyst are muscular , and that it is to their presence that the high degree of ...
Página 13
... whole extent . They were not scattered at random through this membrane , but were contained in the interior of a system of tubes which formed a network in the substance of the endocyst ( Pl . II , fig . 13 ) . They are about theth of an ...
... whole extent . They were not scattered at random through this membrane , but were contained in the interior of a system of tubes which formed a network in the substance of the endocyst ( Pl . II , fig . 13 ) . They are about theth of an ...
Página 15
... whole , the reactions of the pergamentaceous ectocysts of Plumatella , & c . , are rather in favour of this tissue being composed of chitine . It is quite insoluble in strong acetic acid , and in a concentrated solution of caustic ...
... whole , the reactions of the pergamentaceous ectocysts of Plumatella , & c . , are rather in favour of this tissue being composed of chitine . It is quite insoluble in strong acetic acid , and in a concentrated solution of caustic ...
Página 17
... whole tract of the alimentary canal , and , on the application of acetic acid , becomes frequently raised from the subjacent layer . Delicate circular striæ may generally be distinctly observed in it , they may be seen surrounding the ...
... whole tract of the alimentary canal , and , on the application of acetic acid , becomes frequently raised from the subjacent layer . Delicate circular striæ may generally be distinctly observed in it , they may be seen surrounding the ...
Página 18
... whole course of the alimentary matter , from the moment of its prehension to its final ejection , may be easily witnessed in many of the fresh - water Polyzoa . If a polypide of Plumatella repens be watched while in an exserted state ...
... whole course of the alimentary matter , from the moment of its prehension to its final ejection , may be easily witnessed in many of the fresh - water Polyzoa . If a polypide of Plumatella repens be watched while in an exserted state ...
Otras ediciones - Ver todas
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 Alcyonella Alcyonella fungosa Alcyonella stagnorum alimentary canal Allman anatomy animal annulus Ascidian attached become Beneden Bowerbankia Brachiopoda branches branchial sac Brit Brux campanulata cavity cell cilia crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst Ehrenbergi embryo endocyst epistome exserted external fibres flabellum fluid fresh-water Polyzoa funiculus ganglion genera genus Gervais hæmal Hancock hippocrepian Hist homologous intestine invaginated l'Acad Lamarck layer Leidy Linnæus longitudinal lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed oesophagus organ orifice Original figures ovary ovum Paludicella parieto-vaginal muscles peculiar Pedicellina perigastric space Plumatella repens Polype à Panache polypide Polyzoon portion posterior present Raspail respiratory retraction retractor retractor muscles Rösel seen septa side species specimens statoblasts stomach structure surface tentacles tentacula tentacular crown tentacular sheath thoracic chamber transparent transverse Trembley tubes Tubularia repens tunic Tunicata Urnatella walls Zooph