A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
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Página 8
... 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 ...
... 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 ...
Página 16
... perigastric space ; the walls which are turned towards the mouth are thick , and densely clothed on their external surface with vibratile cilia , while those which look towards the vent are thin , membranous , and transparent , and ...
... perigastric space ; the walls which are turned towards the mouth are thick , and densely clothed on their external surface with vibratile cilia , while those which look towards the vent are thin , membranous , and transparent , and ...
Página 19
... 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 of a Polyzoon consists of two ...
... 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 of a Polyzoon consists of two ...
Página 20
... perigastric space ; in all the Polyzoa they are armed upon their opposed sides with vibratile cilia , arranged in a single series , and vibrating towards the remote extremity of the tentacle upon one side , and towards the base on the ...
... perigastric space ; in all the Polyzoa they are armed upon their opposed sides with vibratile cilia , arranged in a single series , and vibrating towards the remote extremity of the tentacle upon one side , and towards the base on the ...
Página 22
... perigastric space , and interior of the tentacula and lophophore , all freely communicate with one another , and are filled with a clear fluid , in which float numerous particles of very irre- gular form and size . In this fluid may be ...
... perigastric space , and interior of the tentacula and lophophore , all freely communicate with one another , and are filled with a clear fluid , in which float numerous particles of very irre- gular form and size . In this fluid may be ...
Otras ediciones - Ver todas
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 Alcyonella Alcyonella fungosa Alcyonella stagnorum alimentary canal Allman anatomy animal annulus Ascidian attached become Beneden Bowerbankia Brachiopoda branches branchial sac Brit Brux campanulata cavity cell cilia cœnocium crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst embryo endocyst epistome exserted external fibres flabellum fluid fresh-water Polyzoa funiculus ganglion genera genus Gervais hæmal Hancock hippocrepian Hist homologous intestine invaginated l'Acad Lamarck layer Leidy Linnæus lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed œsophagus organ orifice Original figures ovary ovum Paludicella parieto-vaginal muscles peculiar Pedicellina perigastric space Plumatella repens Polype à Panache polypide Polyzoon portion posterior present Raspail respiratory retraction retractor retractor muscles Rösel seen septa side species specimens statoblasts stomach structure surface tentacles tentacula tentacular crown tentacular sheath thoracic chamber transparent transverse Trembley tubes Tubularia repens tunic Tunicata Urnatella walls Zooph Zoophytes