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 14
Página 22
... contained in the perigastric space , and thence admitted into the tentacula , con- sists mainly of water which had obtained entrance from without , there can , I think , be little doubt , and yet I have in vain sought for any opening ...
... contained in the perigastric space , and thence admitted into the tentacula , con- sists mainly of water which had obtained entrance from without , there can , I think , be little doubt , and yet I have in vain sought for any opening ...
Página 34
... contained within the external membrane of the ovum , which , however , has become much distended , in accordance with the increasing size of the included parts , and at length , giving way , allows the embryo to escape . The free embryo ...
... contained within the external membrane of the ovum , which , however , has become much distended , in accordance with the increasing size of the included parts , and at length , giving way , allows the embryo to escape . The free embryo ...
Página 62
... contained Vaucher's memoir . The following are the characters on which Bosc founded his new genus : 6 " Polypier fixé à tige grêle , membraneux , souvent ramifié , terminé , ainsi que ses rameaux par un polype dont le corps peut entrer ...
... contained Vaucher's memoir . The following are the characters on which Bosc founded his new genus : 6 " Polypier fixé à tige grêle , membraneux , souvent ramifié , terminé , ainsi que ses rameaux par un polype dont le corps peut entrer ...
Página 65
... contained in the report of his paper , it is impos- sible to identify the animal so designated . He gives , on the whole , a very good description 1830 . MEYEN , Nachträgliche Bemerkungen zur Naturg . der Polypen des süssen Wassers ...
... contained in the report of his paper , it is impos- sible to identify the animal so designated . He gives , on the whole , a very good description 1830 . MEYEN , Nachträgliche Bemerkungen zur Naturg . der Polypen des süssen Wassers ...
Página 71
... contained spermatozoon . The ciliated embryos of Alcyonella are also described and figured , but the authors do not pursue their development into much detail , while they consider them as identical with statoblasts in a particular stage ...
... contained spermatozoon . The ciliated embryos of Alcyonella are also described and figured , but the authors do not pursue their development into much detail , while they consider them as identical with statoblasts in a particular stage ...
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