A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Página 56
... statoblasts , which they took for eggs , and observed the escape from them of 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 ...
... statoblasts , which they took for eggs , and observed the escape from them of 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 ...
Página 57
... statoblasts of a fresh - water vessel the current of blood was intermittent . Immediately on being emptied , the whole of the visible portion of the vessel contracted vigorously , and then slowly expanded for the reception of a fresh ...
... statoblasts of a fresh - water vessel the current of blood was intermittent . Immediately on being emptied , the whole of the visible portion of the vessel contracted vigorously , and then slowly expanded for the reception of a fresh ...
Página 58
... 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 described ; one is the " Polype à ...
... 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 described ; one is the " Polype à ...
Página 60
... statoblasts , which this naturalist mistook for the seeds of Lemna . In September , 1774 , Blumenbach described , at a meeting of the Royal Society of Göt- tingen , a new fresh - water Polyzoon , which he had discovered in the ...
... statoblasts , which this naturalist mistook for the seeds of Lemna . In September , 1774 , Blumenbach described , at a meeting of the Royal Society of Göt- tingen , a new fresh - water Polyzoon , which he had discovered in the ...
Página 64
... statoblasts , which he con- siders to be eggs , and the structure of their investing capsule , with more detail than any pre- vious observer . But the most singular feature in the memoir is to be found in its zoological , rather than ...
... statoblasts , which he con- siders to be eggs , and the structure of their investing capsule , with more detail than any pre- vious observer . But the most singular feature in the memoir is to be found in its zoological , rather than ...
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