A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Volumen28Ray Society, 1856 - 119 páginas |
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Página 9
... hæmal , " and to the latter that of " neural , " thus applying to the Mollusca the terms already so happily employed by Owen in his designation of the regions of the vertebrate skeleton . These terms have the advantage of stating a ...
... hæmal , " and to the latter that of " neural , " thus applying to the Mollusca the terms already so happily employed by Owen in his designation of the regions of the vertebrate skeleton . These terms have the advantage of stating a ...
Página 47
... hæmal extremities of the transverse bars of one side are separated from the corresponding extremities of those of the other by a considerable space , and thus present a marked approach to the open condition which characterises the ...
... hæmal extremities of the transverse bars of one side are separated from the corresponding extremities of those of the other by a considerable space , and thus present a marked approach to the open condition which characterises the ...
Página 51
... hæmal flexure ; but instead of the anal aperture remaining on the hæmal side , it is bent round by the same process as in Spirialis and Limacina , but in the inverse direction . Suppose , with all this , that a mantle has been developed ...
... hæmal flexure ; but instead of the anal aperture remaining on the hæmal side , it is bent round by the same process as in Spirialis and Limacina , but in the inverse direction . Suppose , with all this , that a mantle has been developed ...
Otras ediciones - Ver todas
A Monograph of the Fresh-Water Polyzoa, Including All the Known Species ... George James Allman Sin vista previa disponible - 2009 |
A Monograph of the Fresh-water Polyzoa: Including All the Known Species ... George James 1812-1898 Allman Sin vista previa disponible - 2021 |
A Monograph of the Fresh-Water Polyzoa: Including All the Known Species ... George James Allman Sin vista previa disponible - 2016 |
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 Ehrenbergi 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 longitudinal lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed oesophagus 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