A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Resultados 11-15 de 66
Página 12
... distinct view of all the contained parts , the fibres are collected into numerous transverse bands ( Pl . X , figs . 3 , 4 , v ) , which we may trace throughout the whole extent of the cell . A peculiar condition of the endocyst of ...
... distinct view of all the contained parts , the fibres are collected into numerous transverse bands ( Pl . X , figs . 3 , 4 , v ) , which we may trace throughout the whole extent of the cell . A peculiar condition of the endocyst of ...
Página 13
... distinct canals . In Cristatella , where the endocyst constitutes the whole of the conccium , it presents below a flattened disc , which closely resembles the foot of a gasteropodous mollusc , and on which this singular colony creeps ...
... distinct canals . In Cristatella , where the endocyst constitutes the whole of the conccium , it presents below a flattened disc , which closely resembles the foot of a gasteropodous mollusc , and on which this singular colony creeps ...
Página 14
... distinct structure , but its membranous nature becomes at once manifest when the animal has undergone partial desiccation , for then the ectocyst is thrown into folds by losing a portion of the fluid which had been imprisoned in it ...
... distinct structure , but its membranous nature becomes at once manifest when the animal has undergone partial desiccation , for then the ectocyst is thrown into folds by losing a portion of the fluid which had been imprisoned in it ...
Página 16
... distinct muscular fibres ( n ) , which are visible through the transparent walls , and will be afterwards more particularly described , while the depression is probably the result of an antagonistic elasticity . I propose to designate ...
... distinct muscular fibres ( n ) , which are visible through the transparent walls , and will be afterwards more particularly described , while the depression is probably the result of an antagonistic elasticity . I propose to designate ...
Página 17
... distinct anus by perforating the tentacular sheath just below the mouth , and at the concave side of the lophophore . b . Gymnolamata . In Paludicella articulata , the mouth ( Pl . X , fig . 5 ) is a perfectly circular orifice , with ...
... distinct anus by perforating the tentacular sheath just below the mouth , and at the concave side of the lophophore . b . Gymnolamata . In Paludicella articulata , the mouth ( Pl . X , fig . 5 ) is a perfectly circular orifice , with ...
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