A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 23
If it be admitted , as I think it must be , that the perigastric fluid consists mainly of
water which has obtained entrance from without , it then corresponds to a true
aquiferous system subservient to a respiratory function . But it also without doubt
...
If it be admitted , as I think it must be , that the perigastric fluid consists mainly of
water which has obtained entrance from without , it then corresponds to a true
aquiferous system subservient to a respiratory function . But it also without doubt
...
Página 26
There is certainly no reason why muscular fibres may not be developed in them ,
and the condition of the corresponding parts in Paludicella , as well as in certain
marine Polyzoa , is altogether in favour of their muscularity ; but they do not ...
There is certainly no reason why muscular fibres may not be developed in them ,
and the condition of the corresponding parts in Paludicella , as well as in certain
marine Polyzoa , is altogether in favour of their muscularity ; but they do not ...
Página 27
3 , 4 , n ) resembles in attachments and use the corresponding muscle in the
other species , but is not so distinctly divided into two separate fasciculi . ( 2. )
Anterior Parieto - vaginal Muscles . These constitute four strong fasciculi ( Pl . X ,
figs .
3 , 4 , n ) resembles in attachments and use the corresponding muscle in the
other species , but is not so distinctly divided into two separate fasciculi . ( 2. )
Anterior Parieto - vaginal Muscles . These constitute four strong fasciculi ( Pl . X ,
figs .
Página 31
I have thus traced it back to the base of the arms , but have here failed in my
attempts to follow it further ; it is , however , highly probable that it passes across
the lophophore to unite with the corresponding chord of the opposite side .
I have thus traced it back to the base of the arms , but have here failed in my
attempts to follow it further ; it is , however , highly probable that it passes across
the lophophore to unite with the corresponding chord of the opposite side .
Página 32
7 , 4 ) attached by a short peduncle to the endocyst at a little distance within the
orifice , and corresponding exactly in position to an ordinary bud , with the early
stage of which it may indeed be readily confounded . This body is the ovary .
7 , 4 ) attached by a short peduncle to the endocyst at a little distance within the
orifice , and corresponding exactly in position to an ordinary bud , with the early
stage of which it may indeed be readily confounded . This body is the ovary .
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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 canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cænæcium cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding 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 organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens represented 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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