A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Resultados 6-10 de 26
Página 39
... young polyzoon , is henceforth , in consequence of the opacity of the covering , impossible . The statoblast has now acquired the complete form characteristic of the species , and , breaking loose from the funiculus , it falls free into ...
... young polyzoon , is henceforth , in consequence of the opacity of the covering , impossible . The statoblast has now acquired the complete form characteristic of the species , and , breaking loose from the funiculus , it falls free into ...
Página 40
... young . In Alcyonella fungosa and Lophopus crystallinus I have also occasionally seen bodies , which differ from the ordinary statoblasts of these Polyzoa by the possession of a regular elliptical aperture in the centre of their more ...
... young . In Alcyonella fungosa and Lophopus crystallinus I have also occasionally seen bodies , which differ from the ordinary statoblasts of these Polyzoa by the possession of a regular elliptical aperture in the centre of their more ...
Página 56
... young Polyzoon . In 1744 , Trembley published his famous memoirs on fresh - water polypes . In these is a full description of the " Polype à Panache , " accompanied with two figures ; the description is wonderfully accurate , and the ...
... young Polyzoon . In 1744 , Trembley published his famous memoirs on fresh - water polypes . In these is a full description of the " Polype à Panache , " accompanied with two figures ; the description is wonderfully accurate , and the ...
Página 58
... young polypes on being placed in water . He naturally considered these statoblasts as eggs . In the Transactions of the Royal Academy of Sciences of Stockholm , for the year 1746 , is a memoir on fresh - water polypes , by Bæck . * In ...
... young polypes on being placed in water . He naturally considered these statoblasts as eggs . In the Transactions of the Royal Academy of Sciences of Stockholm , for the year 1746 , is a memoir on fresh - water polypes , by Bæck . * In ...
Página 59
... young condition of the Polyzoon , for which Cuvier afterwards constituted a new genus , under the name of Cristatella . Linnæus's grand invention of a binary nomenclature had now been established , and we accordingly find in the tenth ...
... young condition of the Polyzoon , for which Cuvier afterwards constituted a new genus , under the name of Cristatella . Linnæus's grand invention of a binary nomenclature had now been established , and we accordingly find in the tenth ...
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