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 , which ...
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 , which ...
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 peculiar cement in
which no ...
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 peculiar cement in
which no ...
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 the ...
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 the ...
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A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent admit Alcyonella alimentary alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British canal cavity cell characters 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 organs 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 stones 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 Volumen13 de DE-601)130488305: Ray Society Publications, Ray Society Ray Society, 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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