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 21
... becomes much constricted , and this constricted portion passes into the intestine whose origin is nearly on a level with the cardiac orifice , but separated from it by a considerable space . The intestine passes first forwards and ...
... becomes much constricted , and this constricted portion passes into the intestine whose origin is nearly on a level with the cardiac orifice , but separated from it by a considerable space . The intestine passes first forwards and ...
Página 22
... become so much constricted as to be no longer capable of containing the polypide , which is in consequence pushed onwards into the wider portion which now constitutes the proper cell . The muscles of the stalk have their represen ...
... become so much constricted as to be no longer capable of containing the polypide , which is in consequence pushed onwards into the wider portion which now constitutes the proper cell . The muscles of the stalk have their represen ...
Página 27
... become concealed under the increasing opacity of the superjacent tissues . In the more transparent genus Lophopus ... becoming of course superior * Loc . cit . or anterior to them when the tube is evaginated during MUSCULAR SYSTEM . 27.
... become concealed under the increasing opacity of the superjacent tissues . In the more transparent genus Lophopus ... becoming of course superior * Loc . cit . or anterior to them when the tube is evaginated during MUSCULAR SYSTEM . 27.
Página 30
... become very obscure . When the broken extremity of a fibre is examined , the fracture will be found to have occurred in a plane perpendicular to the axis of the fibre , never presenting an uneven or lacerated surface , and a marked ...
... become very obscure . When the broken extremity of a fibre is examined , the fracture will be found to have occurred in a plane perpendicular to the axis of the fibre , never presenting an uneven or lacerated surface , and a marked ...
Página 32
... become free ( E ) , may be seen carried about in the fluid of the perigastric space , and thus brought in contact with the ovary . In Paludicella , the ovary occupies the same position as in Alcyonella , forming an irregularly shaped ...
... become free ( E ) , may be seen carried about in the fluid of the perigastric space , and thus brought in contact with the ovary . In Paludicella , the ovary occupies the same position as in Alcyonella , forming an irregularly shaped ...
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