A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Página 21
... separated from it by a considerable space . The intestine passes first forwards and towards the neural side , then turns towards the mouth to open after a wide dilation between the arms of the lophophore in the bottom of the tentacular ...
... separated from it by a considerable space . The intestine passes first forwards and towards the neural side , then turns towards the mouth to open after a wide dilation between the arms of the lophophore in the bottom of the tentacular ...
Página 22
... separated from the latter by the whole mass of the generative system , is the nervous ganglion , close to which , and lying between it and the oesophagus , is a peculiar organ in the form of a minute tubular cavity clothed with actively ...
... separated from the latter by the whole mass of the generative system , is the nervous ganglion , close to which , and lying between it and the oesophagus , is a peculiar organ in the form of a minute tubular cavity clothed with actively ...
Página 23
... separated by laceration . If it be admitted , as I think it must be , that the perigastric fluid consists mainly of water which has obtained entrance from without , it then corresponds to a true aquiferous system subservient to a ...
... separated by laceration . If it be admitted , as I think it must be , that the perigastric fluid consists mainly of water which has obtained entrance from without , it then corresponds to a true aquiferous system subservient to a ...
Página 26
... separated from the proper walls of the cell by a process of chorization , and while this is taking place the bands in question would seem to be drawn out by the act of separation . There is certainly no reason why muscular fibres may ...
... separated from the proper walls of the cell by a process of chorization , and while this is taking place the bands in question would seem to be drawn out by the act of separation . There is certainly no reason why muscular fibres may ...
Página 33
... separated , by a considerable interval , from the ovary ; it is connected with the stomach by a cylindrical chord ... separation from the walls of the central cavity , and appears therefore to originate by a process of unlining , a true ...
... separated , by a considerable interval , from the ovary ; it is connected with the stomach by a cylindrical chord ... separation from the walls of the central cavity , and appears therefore to originate by a process of unlining , a true ...
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