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 19
... Urnatella , not yet sufficiently examined , in which not the slightest trace of bilaterality can be detected ( Pl . X , fig . 5 ) . With the exception of Pedicellina , which presents a condition of the lophophore altogether unique and ...
... Urnatella , not yet sufficiently examined , in which not the slightest trace of bilaterality can be detected ( Pl . X , fig . 5 ) . With the exception of Pedicellina , which presents a condition of the lophophore altogether unique and ...
Página 21
... Urnatella , the entire plume of tentacula is surrounded at its base by an exceedingly delicate water Phylactolæmata is probably united . In order to understand this relation , it is necessary to conceive of the polypide as partially ...
... Urnatella , the entire plume of tentacula is surrounded at its base by an exceedingly delicate water Phylactolæmata is probably united . In order to understand this relation , it is necessary to conceive of the polypide as partially ...
Página 22
... 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 yet been detected ...
... 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 yet been detected ...
Página 31
... Urnatella and Pectinatella , which I have had no opportunity of examining , and of Paludicella , in which I have not as yet been able to effect any satisfactory demonstration of its existence . In the phylactolæmatous species , there ...
... Urnatella and Pectinatella , which I have had no opportunity of examining , and of Paludicella , in which I have not as yet been able to effect any satisfactory demonstration of its existence . In the phylactolæmatous species , there ...
Página 73
... Urnatella , Leidy ) of fresh - water Polyzoa . In 1854 , Leidy presented to the Academy an additional notice , § in which , with an amended diagnosis of Urnatella , he confirms the claim of this animal to rank as a distinct genus of ...
... Urnatella , Leidy ) of fresh - water Polyzoa . In 1854 , Leidy presented to the Academy an additional notice , § in which , with an amended diagnosis of Urnatella , he confirms the claim of this animal to rank as a distinct genus of ...
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