A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 7
Retractor muscle . Let us imagine an alimentary canal , consisting of esophagus ,
stomach , and intestine , to be furnished at its origin with long ciliated tentacula ,
and to have a single nervous ganglion situated on one side of the wesophagus .
Retractor muscle . Let us imagine an alimentary canal , consisting of esophagus ,
stomach , and intestine , to be furnished at its origin with long ciliated tentacula ,
and to have a single nervous ganglion situated on one side of the wesophagus .
Página 16
The cavity in its interior communicates through an opening ( e ' ) in the
lophophore with the perigastric space ; the walls which are turned towards the
mouth are thick , and densely clothed on their external surface with vibratile cilia ,
while ...
The cavity in its interior communicates through an opening ( e ' ) in the
lophophore with the perigastric space ; the walls which are turned towards the
mouth are thick , and densely clothed on their external surface with vibratile cilia ,
while ...
Página 18
The mouth and upper part of the æsophagus are in all the genera clothed with
vibratile cilia , but I could detect no ... With the exception of the mouth and upper
portion of the esophagus , no part of the alimentary canal is ciliated in the ...
The mouth and upper part of the æsophagus are in all the genera clothed with
vibratile cilia , but I could detect no ... With the exception of the mouth and upper
portion of the esophagus , no part of the alimentary canal is ciliated in the ...
Página 19
... the interior of the arms is clothed with vibratile cilia . * The structure of
Pedicellina has been hitherto entirely misunderstood . I have had an opportunity
of carefully examining this Polyzoon , and as it is constructed on a plan quite
peculiar ...
... the interior of the arms is clothed with vibratile cilia . * The structure of
Pedicellina has been hitherto entirely misunderstood . I have had an opportunity
of carefully examining this Polyzoon , and as it is constructed on a plan quite
peculiar ...
Página 20
The tentacula are tubular , closed at their free extremity , and opening by the
opposite through the lophophore into the perigastric space ; in all the Polyzoa
they are armed upon their opposed sides with vibratile cilia , arranged in a single
...
The tentacula are tubular , closed at their free extremity , and opening by the
opposite through the lophophore into the perigastric space ; in all the Polyzoa
they are armed upon their opposed sides with vibratile cilia , arranged in a single
...
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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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