A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 37
Their form is not exactly the same in the different species , but they may be generally described as lenticular bodies , varying , according to the species , from an orbicular to an elongated oval figure , and enclosed in a horny shell ...
Their form is not exactly the same in the different species , but they may be generally described as lenticular bodies , varying , according to the species , from an orbicular to an elongated oval figure , and enclosed in a horny shell ...
Página 40
But , besides these bodies , others ( Pl . IV , fig . 10 ; VII , fig . 9 ) may be observed which never lie loose in the cell , but are invariably attached to the internal surface of the walls , to which they adhere by means of a ...
But , besides these bodies , others ( Pl . IV , fig . 10 ; VII , fig . 9 ) may be observed which never lie loose in the cell , but are invariably attached to the internal surface of the walls , to which they adhere by means of a ...
Página 67
Turpin describes the bodies from which these little animals proceeded with considerable detail , but his account is in many respects erroneous . He alludes to the annulus with which they are surrounded , but sets this appearance down as ...
Turpin describes the bodies from which these little animals proceeded with considerable detail , but his account is in many respects erroneous . He alludes to the annulus with which they are surrounded , but sets this appearance down as ...
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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 admit Alcyonella alimentary alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cænæcium canal cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella crown described detected disc distinct Dumortier ectocyst edit endocyst entire epistome examined existence extending external extremity fibres fluid Fredericella fresh-water Polyzoa genera genus Gervais gives important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens resemblance retraction retractor Rösel seen separated sheath side space species specimens statoblasts stomach structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young
Información bibliográfica
| Título | A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, George James Allman Publications, Ray Society Tema 28 de Ray Society Volumen28 de Ray society ... [Publications |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | Universidad de Michigan |
| Digitalizado | 13 Feb. 2012 |
| Largo | 119 páginas |
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