A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 2
... term which up to the present day has been in general adoption . It was just at
this time that Abraham Trembley was engaged in his famous experiments on the
Hydra , which Leeuwenhock had originally discovered , attached to the leaves of
...
... term which up to the present day has been in general adoption . It was just at
this time that Abraham Trembley was engaged in his famous experiments on the
Hydra , which Leeuwenhock had originally discovered , attached to the leaves of
...
Página 10
Polypide completely retractile ; evagination perfect ; a circle of setć attached to
the ininvertible portion , and acting as an operculum in the retracted state .
CTENOSTOMATA ( marine ) . Polypide completely retractile ; evagination perfect
...
Polypide completely retractile ; evagination perfect ; a circle of setć attached to
the ininvertible portion , and acting as an operculum in the retracted state .
CTENOSTOMATA ( marine ) . Polypide completely retractile ; evagination perfect
...
Página 11
4 , a ) lines the interior of the cells , and when it arrives at their apertures would
protrude beyond the ectocyst were it not that it here becomes invaginated or
inverted into itself , and then terminates by being attached round the base of the ...
4 , a ) lines the interior of the cells , and when it arrives at their apertures would
protrude beyond the ectocyst were it not that it here becomes invaginated or
inverted into itself , and then terminates by being attached round the base of the ...
Página 12
In the midst of this a minute vacuola next shows itself ; this becomes the cell -
cavity , and gradually increases in size with the enlarging cell ; the nucleus is
persistent , remaining attached to the cell - wall . For reasons to be presently
mentioned ...
In the midst of this a minute vacuola next shows itself ; this becomes the cell -
cavity , and gradually increases in size with the enlarging cell ; the nucleus is
persistent , remaining attached to the cell - wall . For reasons to be presently
mentioned ...
Página 14
The part of the ectocyst to which the ribs are attached is carried inwards during
extreme retraction of the polypide . These ribs I look upon as the true homologue
of the sele which crown the cell in Bowerbankia and other ctenostomatous ...
The part of the ectocyst to which the ribs are attached is carried inwards during
extreme retraction of the polypide . These ribs I look upon as the true homologue
of the sele which crown the cell in Bowerbankia and other ctenostomatous ...
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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 cćnćcium canal cavity cell character cilia closely complete condition connected consists constitutes contained continuous Cristatella 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 Hist 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 | la Biblioteca Estatal de Baviera |
| Digitalizado | 13 Nov. 2009 |
| Largo | 119 páginas |
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