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 27
... alimentary canal , and need not be further referred to here . b . Muscles of Paludicella . The muscular system of Paludicella differs in some important points from that of the species with bilateral lophophores . The muscles may here be ...
... alimentary canal , and need not be further referred to here . b . Muscles of Paludicella . The muscular system of Paludicella differs in some important points from that of the species with bilateral lophophores . The muscles may here be ...
Página 34
... alimentary canal , represented at first by a single small cavity , hollowed out in the body of the polypide , is undergoing development , and œsophagus , stomach , and intestine begin to be distinguishable . The great retractor muscles ...
... alimentary canal , represented at first by a single small cavity , hollowed out in the body of the polypide , is undergoing development , and œsophagus , stomach , and intestine begin to be distinguishable . The great retractor muscles ...
Página 36
... alimentary canal becomes elongated into the great cul - de - sac of the stomach , the muscles are by this time all ... digestive system . The development of the bud in the species with crescentic 36 GEMMATION .
... alimentary canal becomes elongated into the great cul - de - sac of the stomach , the muscles are by this time all ... digestive system . The development of the bud in the species with crescentic 36 GEMMATION .
Página 37
... alimentary canal begins to appear as a minute cavity in the part of the bud farthest removed from the walls of the cell . This cavity increases in size ( figs . 13 , 14 ) , and becomes the stomach , while the intestine also shows itself ...
... alimentary canal begins to appear as a minute cavity in the part of the bud farthest removed from the walls of the cell . This cavity increases in size ( figs . 13 , 14 ) , and becomes the stomach , while the intestine also shows itself ...
Página 48
... alimentary canal on each side , until it reaches the hæmal side of the thoracic chamber , thus causing the mouth , which perforates this tube near its centre , to be related to it and to its lateral branches , exactly as the mouth in ...
... alimentary canal on each side , until it reaches the hæmal side of the thoracic chamber , thus causing the mouth , which perforates this tube near its centre , to be related to it and to its lateral branches , exactly as the mouth in ...
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