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 5
... walls of the body cavity in Gorgonia , Isis , Alcyonium , & c . , to the tunics of an Ascidian or the mantle of an ordinary Mollusc , a comparison which plainly shows that he had no idea whatever of the relation in question . + ...
... walls of the body cavity in Gorgonia , Isis , Alcyonium , & c . , to the tunics of an Ascidian or the mantle of an ordinary Mollusc , a comparison which plainly shows that he had no idea whatever of the relation in question . + ...
Página 8
... walls of the endocyst and the alimentary canal . The terms now enumerated are such as I believe the nature of the subject strictly requires . I employed most of them in my ' Report on Fresh - water Polyzoa ' published in 1850 , and ...
... walls of the endocyst and the alimentary canal . The terms now enumerated are such as I believe the nature of the subject strictly requires . I employed most of them in my ' Report on Fresh - water Polyzoa ' published in 1850 , and ...
Página 11
... walls of the cell . The intervening substance , which , before the application of the acetic acid , appeared simply granular , is now seen to * In Pedicellina , and apparently also in Urnatella , the power of protrusion and retraction ...
... walls of the cell . The intervening substance , which , before the application of the acetic acid , appeared simply granular , is now seen to * In Pedicellina , and apparently also in Urnatella , the power of protrusion and retraction ...
Página 12
... wall . For reasons to be presently mentioned , it is highly probable that the endocyst is pervaded by a system of canals of extreme delicacy , which constitute an irregular network in its substance . Besides the structure now described ...
... wall . For reasons to be presently mentioned , it is highly probable that the endocyst is pervaded by a system of canals of extreme delicacy , which constitute an irregular network in its substance . Besides the structure now described ...
Página 13
... walls of the cells . In the endocyst alone , however , do they appear to be contained in distinct canals . In Cristatella , where the endocyst constitutes the whole of the cœnocium , it presents below a flattened disc , which closely ...
... walls of the cells . In the endocyst alone , however , do they appear to be contained in distinct canals . In Cristatella , where the endocyst constitutes the whole of the cœnocium , it presents below a flattened disc , which closely ...
Otras ediciones - Ver todas
A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Volumen28 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