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 23
... action of vibratile cilia , and partly by the muscular * Meyen , Naturgeschichte der Polypen , Isis , 1828 . " Loc . cit . § 41 . Recherches sur l'Org . des Laguncula , Nouv . Mém . de l'Ac . Brux . , ' xviii . On the Blood proper and ...
... action of vibratile cilia , and partly by the muscular * Meyen , Naturgeschichte der Polypen , Isis , 1828 . " Loc . cit . § 41 . Recherches sur l'Org . des Laguncula , Nouv . Mém . de l'Ac . Brux . , ' xviii . On the Blood proper and ...
Página 24
... action of the retractor muscles is very obvious ; having a com- paratively fixed point of attachment near the bottom of the cell , they retract the whole alimentary canal with the tentacular crown , so as to place them in a state of ...
... action of the retractor muscles is very obvious ; having a com- paratively fixed point of attachment near the bottom of the cell , they retract the whole alimentary canal with the tentacular crown , so as to place them in a state of ...
Página 25
... Action : they rotate the tentacular crown , and depress the lobes . ( 3. ) Tentacular Muscles ? Under this name may perhaps be described a set of delicate parallel bands ( Pl . V , fig . 5 , q ) . to which attention was first directed ...
... Action : they rotate the tentacular crown , and depress the lobes . ( 3. ) Tentacular Muscles ? Under this name may perhaps be described a set of delicate parallel bands ( Pl . V , fig . 5 , q ) . to which attention was first directed ...
Página 26
... action will dilate the invaginated endocyst , and assist in keeping it permanently inverted . ( 6. ) Posterior Parieto - vaginal Muscles . These consist of several radiating bands ( Pl . IV , fig . 4 ; V , figs . 5 , 6 ; IX , fig . 7 ...
... action will dilate the invaginated endocyst , and assist in keeping it permanently inverted . ( 6. ) Posterior Parieto - vaginal Muscles . These consist of several radiating bands ( Pl . IV , fig . 4 ; V , figs . 5 , 6 ; IX , fig . 7 ...
Página 27
... action they evidently constrict the endocyst in a transverse direction , and thus aid in the protrusion of the polypide . A muscular tissue is also very evident in the walls of the stomach ; this has already been described in connection ...
... action they evidently constrict the endocyst in a transverse direction , and thus aid in the protrusion of the polypide . A muscular tissue is also very evident in the walls of the stomach ; this has already been described in connection ...
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