A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 3
It consisted of a lobed jelly - like mass , from which protruded numerous polypoid
bodies , each characterised by the possession of an elegant crown of tentacula
borne on the margin of a crescent - shaped disc . This beautiful tentacular plume
...
It consisted of a lobed jelly - like mass , from which protruded numerous polypoid
bodies , each characterised by the possession of an elegant crown of tentacula
borne on the margin of a crescent - shaped disc . This beautiful tentacular plume
...
Página 11
The attachment of the endocyst to the base of the tentacular crown closes the
cænæcial chambers externally , while the polypide is thus suspended in the
midst of the fluid with which these chambers are filled . If we examine the
endocyst ...
The attachment of the endocyst to the base of the tentacular crown closes the
cænæcial chambers externally , while the polypide is thus suspended in the
midst of the fluid with which these chambers are filled . If we examine the
endocyst ...
Página 12
In this condition it continues till it terminates by being attached to the base of the
tentacular crown . This thin , non - contractile portion of the endocyst constitutes
the tentacular sheath which encloses and protects the tentacula during the ...
In this condition it continues till it terminates by being attached to the base of the
tentacular crown . This thin , non - contractile portion of the endocyst constitutes
the tentacular sheath which encloses and protects the tentacula during the ...
Página 14
These ribs I look upon as the true homologue of the seta which crown the cell in
Bowerbankia and other ctenostomatous Polyzoa ; if these setæ were reduced in
number to four , and instead of being free were attached along their entire length
...
These ribs I look upon as the true homologue of the seta which crown the cell in
Bowerbankia and other ctenostomatous Polyzoa ; if these setæ were reduced in
number to four , and instead of being free were attached along their entire length
...
Página 19
Upon the tentacular crown and the walls of the perigastric space would seem ,
among the Polyzoa , chiefly to devolve the function of bringing under the
influence of the aërating medium the nutritious fluid of their tissues . The
tentacular crown ...
Upon the tentacular crown and the walls of the perigastric space would seem ,
among the Polyzoa , chiefly to devolve the function of bringing under the
influence of the aërating medium the nutritious fluid of their tissues . The
tentacular crown ...
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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 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 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 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 | Biblioteca Nacional de Austria |
| Digitalizado | 12 Mayo 2011 |
| Largo | 119 páginas |
| Exportar cita | BiBTeX EndNote RefMan |