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 20
... intestine . d k Fig . 3 . f .... • h b .... ... 9 PLAN OF PEDICELLINA . Fig . 4 . Fig . 3. Longitudinal section . Fig 4. Front view of lophophore and contiguous parts . Ectocyst . 6. Endocyst . c . Invaginated portion of endocyst ...
... intestine . d k Fig . 3 . f .... • h b .... ... 9 PLAN OF PEDICELLINA . Fig . 4 . Fig . 3. Longitudinal section . Fig 4. Front view of lophophore and contiguous parts . Ectocyst . 6. Endocyst . c . Invaginated portion of endocyst ...
Página 21
... intestine whose origin is nearly on a level with the cardiac orifice , but separated from it by a considerable space . The intestine passes first forwards and towards the neural side , then turns towards the mouth to open after a wide ...
... intestine whose origin is nearly on a level with the cardiac orifice , but separated from it by a considerable space . The intestine passes first forwards and towards the neural side , then turns towards the mouth to open after a wide ...
Página 33
... intestine , and by the other attached to the walls of the cell , and apparently also in connection at this place with the ovary , is a cylindrical flexible chord ( anterior funiculus ) ( Pl . X , figs . 3 , 4 , 0 ) , which obeys all the ...
... intestine , and by the other attached to the walls of the cell , and apparently also in connection at this place with the ovary , is a cylindrical flexible chord ( anterior funiculus ) ( Pl . X , figs . 3 , 4 , 0 ) , which obeys all the ...
Página 34
... intestine begin to be distinguishable . The great retractor muscles have become evident , and the funiculus may be seen extending from the base of the polypide to the walls of the sac ( Pl . XI , fig . 31 ) . The polypides have , at ...
... intestine begin to be distinguishable . The great retractor muscles have become evident , and the funiculus may be seen extending from the base of the polypide to the walls of the sac ( Pl . XI , fig . 31 ) . The polypides have , at ...
Página 36
... intestine . This cavity is at first filled with clear , round bodies , having a high refracting power , but in which I could not trace the double outline of a true cell - wall . The polypide is now seen to be suspended from the wall of ...
... intestine . This cavity is at first filled with clear , round bodies , having a high refracting power , but in which I could not trace the double outline of a true cell - wall . The polypide is now seen to be suspended from the wall of ...
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 cœnocium crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst 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 lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed œsophagus 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 Zoophytes