A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Resultados 6-10 de 17
Página 28
... tunic . I have not suc- ceeded in dividing it into an inferior and superior set , as described by Mr. Hancock . Its action closes the invaginated endocyst after the retraction of the polypide . ( 5. ) Parietal Muscles . These are ...
... tunic . I have not suc- ceeded in dividing it into an inferior and superior set , as described by Mr. Hancock . Its action closes the invaginated endocyst after the retraction of the polypide . ( 5. ) Parietal Muscles . These are ...
Página 36
... tunic has numerous large , round , nucleated cells distributed through its substance , and internally it presents an uneven surface . The two tunics of the gemma are to become the ectocyst and endocyst of the future cell . By this time ...
... tunic has numerous large , round , nucleated cells distributed through its substance , and internally it presents an uneven surface . The two tunics of the gemma are to become the ectocyst and endocyst of the future cell . By this time ...
Página 44
... tunic . b . Middle tunic . c . Internal tunic . dd d . General sinus system . orifice . f . Cloacal orifice . g . Transverse respiratory bars . h . Longitudinal i . Branchial sinus . k . Thoracic sinus . 11. Proper membrane of ...
... tunic . b . Middle tunic . c . Internal tunic . dd d . General sinus system . orifice . f . Cloacal orifice . g . Transverse respiratory bars . h . Longitudinal i . Branchial sinus . k . Thoracic sinus . 11. Proper membrane of ...
Página 46
... tunic . The real homology of the Ascidian tentacula is , in fact , to be found in the tentacular mantel - fringe of a lamellibranchiate mollusc . It is true that , in accordance with this view , we can find no homologue in the Polyzoa ...
... tunic . The real homology of the Ascidian tentacula is , in fact , to be found in the tentacular mantel - fringe of a lamellibranchiate mollusc . It is true that , in accordance with this view , we can find no homologue in the Polyzoa ...
Página 47
... tunic united . c c . Internal tunic . Fig . 11. Plan of Doliolum . dd d . General sinus system . e . Respiratory orifice . f . Cloacal orifice . g . Respiratory bars . i . Gill ( Salpa ) and branchial sinus ( Doliolum ) . m . Languette ...
... tunic united . c c . Internal tunic . Fig . 11. Plan of Doliolum . dd d . General sinus system . e . Respiratory orifice . f . Cloacal orifice . g . Respiratory bars . i . Gill ( Salpa ) and branchial sinus ( Doliolum ) . m . Languette ...
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