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 22
... polypide , which is in consequence pushed onwards into the wider portion which now constitutes the proper cell . The muscles of the stalk have their represen- tative in the muscles developed in the walls of the cell of Polyzoa . Between ...
... polypide , which is in consequence pushed onwards into the wider portion which now constitutes the proper cell . The muscles of the stalk have their represen- tative in the muscles developed in the walls of the cell of Polyzoa . Between ...
Página 24
... polypide ( Pl . IV , fig . 4 ) ; on other parts of the endocyst I have not succeeded in detecting them by direct observation ; but the peculiar acceleration which the motion of the circulating corpuscles experiences when these approach ...
... polypide ( Pl . IV , fig . 4 ) ; on other parts of the endocyst I have not succeeded in detecting them by direct observation ; but the peculiar acceleration which the motion of the circulating corpuscles experiences when these approach ...
Página 26
... polypide , while they form a fixed plane on which it may roll outwards with the polypide in the act of protrusion . * ( 7. ) Vaginal Sphincter . The vaginal sphincter is a circular band ( Pl . V , fig . 6 , u ) surrounding the ...
... polypide , while they form a fixed plane on which it may roll outwards with the polypide in the act of protrusion . * ( 7. ) Vaginal Sphincter . The vaginal sphincter is a circular band ( Pl . V , fig . 6 , u ) surrounding the ...
Página 27
... polypide . A muscular tissue is also very evident in the walls of the stomach ; this has already been described in connection with the histology of the alimentary canal , and need not be further referred to here . b . Muscles of ...
... polypide . A muscular tissue is also very evident in the walls of the stomach ; this has already been described in connection with the histology of the alimentary canal , and need not be further referred to here . b . Muscles of ...
Página 28
... polypide . The marine Polyzoa certainly afford an analogy for the existence of these muscles ; but , though I have carefully sought for them in Paludicella , I have not succeeded in detecting them here as distinct fasciculi , and I ...
... polypide . The marine Polyzoa certainly afford an analogy for the existence of these muscles ; but , though I have carefully sought for them in Paludicella , I have not succeeded in detecting them here as distinct fasciculi , and I ...
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