A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 6-10 de 39
Página 6
... natural - history nomenclature demand the adoption of the term Polyzoa , and it is it , therefore , which I have employed in the present Memoir . † Notwithstanding , however , the completeness with which the ascidian type of structure ...
... natural - history nomenclature demand the adoption of the term Polyzoa , and it is it , therefore , which I have employed in the present Memoir . † Notwithstanding , however , the completeness with which the ascidian type of structure ...
Página 22
... natural element . Van Benedens believed that he had detected in Alcyonella apertures , which he names " bouches aquifères , " at the base of the tentacula ; but this distinguished naturalist is certainly given to the stalk , and these ...
... natural element . Van Benedens believed that he had detected in Alcyonella apertures , which he names " bouches aquifères , " at the base of the tentacula ; but this distinguished naturalist is certainly given to the stalk , and these ...
Página 38
... natural mistake , and one the more excusable as the true ovary had not yet been detected . Into this error I fell myself ; * but I have now become convinced that they are a peculiar form of bud , and must on no account be confounded ...
... natural mistake , and one the more excusable as the true ovary had not yet been detected . Into this error I fell myself ; * but I have now become convinced that they are a peculiar form of bud , and must on no account be confounded ...
Página 39
... natural aperture through which either ova or statoblasts can escape , and their liberation , I am convinced , can only take * ' Naturgeschichte der Polypen , ' Isis , 1828 . place after the destruction of the soft parts of the GEMMATION .
... natural aperture through which either ova or statoblasts can escape , and their liberation , I am convinced , can only take * ' Naturgeschichte der Polypen , ' Isis , 1828 . place after the destruction of the soft parts of the GEMMATION .
Página 58
... 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 this memoir two kinds of Polyzoa are ...
... 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 this memoir two kinds of Polyzoa are ...
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