A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 8
The Perigastric ** space is the space included between the walls of the endocyst
and the alimentary canal . The terms now enumerated are such as I believe the
nature of the subject strictly requires . I employed most of them in my ' Report on ...
The Perigastric ** space is the space included between the walls of the endocyst
and the alimentary canal . The terms now enumerated are such as I believe the
nature of the subject strictly requires . I employed most of them in my ' Report on ...
Página 13
In Fredericella a slightly prominent keel is also apparent , but the notch - like
transparent space does not here exist . In Cristatella ( Pl . I ) the ectucyst would
seem to be entirely absent ; and this genus , therefore , presents the anomalous ...
In Fredericella a slightly prominent keel is also apparent , but the notch - like
transparent space does not here exist . In Cristatella ( Pl . I ) the ectucyst would
seem to be entirely absent ; and this genus , therefore , presents the anomalous ...
Página 16
The cavity in its interior communicates through an opening ( é ) 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
those ...
The cavity in its interior communicates through an opening ( é ) 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
those ...
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 ...
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 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 |
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