A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 8
The Epistome is a peculiar valve - like organ which arches over the mouth in most of the fresh - water genera . The Perigastric ** space is the space included between the walls of the endocyst and the alimentary canal .
The Epistome is a peculiar valve - like organ which arches over the mouth in most of the fresh - water genera . The Perigastric ** space is the space included between the walls of the endocyst and the alimentary canal .
Página 10
Lophophore bilateral ; mouth with an epistome . PHYLACTOLEMATA . * Lophophore orbicular , nearly so ; no epistome . GYMNOLÆMATA . † or Arms of lophophore free or obsolete . " } Arms of lophophore united at the extremities . at ...
Lophophore bilateral ; mouth with an epistome . PHYLACTOLEMATA . * Lophophore orbicular , nearly so ; no epistome . GYMNOLÆMATA . † or Arms of lophophore free or obsolete . " } Arms of lophophore united at the extremities . at ...
Página 16
I propose to designate this organ by the name of epistome . On its true function I am unable to throw any light ; though it is here described in connection with the organs of digestion , its relation to the digestive system is perhaps ...
I propose to designate this organ by the name of epistome . On its true function I am unable to throw any light ; though it is here described in connection with the organs of digestion , its relation to the digestive system is perhaps ...
Página 19
... will render manifest its departure from the orbicular form , the side corresponding to the arms of the crescent being slightly prolonged , while the bilaterality is rendered still more decided by the presence of an epistome .
... will render manifest its departure from the orbicular form , the side corresponding to the arms of the crescent being slightly prolonged , while the bilaterality is rendered still more decided by the presence of an epistome .
Página 20
Epistome . 7. Ganglion . m . Generative organ . n . Retractor muscle . o . Lophophore . The tentacula are connected to one another at their base by a membrane which adheres to their back , extending forwards for about one third of their ...
Epistome . 7. Ganglion . m . Generative organ . n . Retractor muscle . o . Lophophore . The tentacula are connected to one another at their base by a membrane which adheres to their back , extending forwards for about one third of their ...
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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
action adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British 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 Hancock 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 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 Volumen18 de ¬The Ray Society |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | la Biblioteca Estatal de Baviera |
| Digitalizado | 13 Nov. 2009 |
| Largo | 119 páginas |
| Exportar cita | BiBTeX EndNote RefMan |