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 46
... crown , there is another part of the organization of the Polyzoa for which we have still to find an equivalent , and which without comparison with the Tunicata would remain inexplicable , namely the epistome of the phylactolæmatous ...
... crown , there is another part of the organization of the Polyzoa for which we have still to find an equivalent , and which without comparison with the Tunicata would remain inexplicable , namely the epistome of the phylactolæmatous ...
Página 47
... crown of Plumatella , do actually occur in other genera of Tunicata , some in one , and some in another . The pre- dominant importance of the transverse over the longitudinal bars of the branchial apparatus in the Tunicata is ...
... crown of Plumatella , do actually occur in other genera of Tunicata , some in one , and some in another . The pre- dominant importance of the transverse over the longitudinal bars of the branchial apparatus in the Tunicata is ...
Página 48
... crown in the Polyzoa . The gill of Doliolum thus constitutes the exact link by which the branchial sac of the Ascidiæ passes immediately into the tentacular crown of the Polyzoa . However interesting the hippocrepian Polyzoa may be in ...
... crown in the Polyzoa . The gill of Doliolum thus constitutes the exact link by which the branchial sac of the Ascidiæ passes immediately into the tentacular crown of the Polyzoa . However interesting the hippocrepian Polyzoa may be in ...
Página 49
... crown is projected and retracted ; but this is equivalent to the respiratory and cloacal orifices of the Tunicata united ; and the point where the rectum opens externally in the Polyzoa is not therefore , as supposed by Van Beneden and ...
... crown is projected and retracted ; but this is equivalent to the respiratory and cloacal orifices of the Tunicata united ; and the point where the rectum opens externally in the Polyzoa is not therefore , as supposed by Van Beneden and ...
Página 50
... crown , but with the pharynx of the Polyzoon , he has brought to bear upon this * This name has been given by Huxley to the whole of the space included between the internal and middle tunics in the Tunicata . It is that through which ...
... crown , but with the pharynx of the Polyzoon , he has brought to bear upon this * This name has been given by Huxley to the whole of the space included between the internal and middle tunics in the Tunicata . It is that through which ...
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