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 22
... Polyzoa ; unless Urnatella should prove to be an exception , which is not likely , though we are not yet sufficiently acquainted with the structure of the genus to include it in this generalization . In no marine poly- zoon has a calyx ...
... Polyzoa ; unless Urnatella should prove to be an exception , which is not likely , though we are not yet sufficiently acquainted with the structure of the genus to include it in this generalization . In no marine poly- zoon has a calyx ...
Página 30
... polyzoon the fibres of the great retractor muscle , while lying relaxed in the bottom of the cell after the retraction of the polypide , may frequently be seen to present a singular motion , impressing you with the idea of a cluster of ...
... polyzoon the fibres of the great retractor muscle , while lying relaxed in the bottom of the cell after the retraction of the polypide , may frequently be seen to present a singular motion , impressing you with the idea of a cluster of ...
Página 31
... polyzoon . * Milne - Edwards , Recherches Anatomiques , Physiologiques et Zoologiques sur les Eschares , ' Ann . des Sci . Nat . , ' 2de série , t . vi . " † Busk in Transactions of the Microscopical Society of London , ' vol . ii . See ...
... polyzoon . * Milne - Edwards , Recherches Anatomiques , Physiologiques et Zoologiques sur les Eschares , ' Ann . des Sci . Nat . , ' 2de série , t . vi . " † Busk in Transactions of the Microscopical Society of London , ' vol . ii . See ...
Página 32
... polyzoon in question to plants belonging to the class Polygamia of the Linnean system , he believes that among the different zooids of the same colony , there are some in which the sexes are distinct , and others in which they are ...
... polyzoon in question to plants belonging to the class Polygamia of the Linnean system , he believes that among the different zooids of the same colony , there are some in which the sexes are distinct , and others in which they are ...
Página 33
... polyzoon the mature ovum consists of a granular vitellus , surrounded by a very evident vitellary membrane , on whose internal surface the contents appear frequently to be aggregated in a coarser granular layer ( Pl . XI , figs . 26 ...
... polyzoon the mature ovum consists of a granular vitellus , surrounded by a very evident vitellary membrane , on whose internal surface the contents appear frequently to be aggregated in a coarser granular layer ( Pl . XI , figs . 26 ...
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 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 Linnæus 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