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 11
... invagination and evagination of the anterior part of the cell . The cœnocium , in every case , except in Cristatella ... invaginated portion of the endocyst is carried out with the latter , thus undergoing a process of evertion , which ...
... invagination and evagination of the anterior part of the cell . The cœnocium , in every case , except in Cristatella ... invaginated portion of the endocyst is carried out with the latter , thus undergoing a process of evertion , which ...
Página 12
... invaginated state . It is probable that in all these genera the endocyst retains its general structure and contractility for a greater or less extent of its permanently invaginated portion , down to a spot where the transverse fibres ...
... invaginated state . It is probable that in all these genera the endocyst retains its general structure and contractility for a greater or less extent of its permanently invaginated portion , down to a spot where the transverse fibres ...
Página 20
... Invaginated portion of endocyst adherent to the bases of the tentacula and entering into the formation of the cup . d . Muscular fibres surrounding the margin of the cup . e . Mouth . f . Esophagus . g . Stomach . h . Rectum . i . Anus ...
... Invaginated portion of endocyst adherent to the bases of the tentacula and entering into the formation of the cup . d . Muscular fibres surrounding the margin of the cup . e . Mouth . f . Esophagus . g . Stomach . h . Rectum . i . Anus ...
Página 21
... invaginated portion of the endocyst must then be viewed as adherent to the external portion externally , and to the tentacula ( and calyx ? ) internally . From this arrangement it is obvious , that the exsertion and retraction of the ...
... invaginated portion of the endocyst must then be viewed as adherent to the external portion externally , and to the tentacula ( and calyx ? ) internally . From this arrangement it is obvious , that the exsertion and retraction of the ...
Página 26
... invaginated endocyst . Their 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 ...
... invaginated endocyst . Their 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 ...
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