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 10
... genus farther on . The terms Cyclostomata , Ctenostomata , and Cheilostomata , were proposed by Busk , to indicate the primary subdivisions of the marine Gymnolæmatous Polyzoa . ( Voyage of " The Rattlesnake , ' vol . i , Appendix , p ...
... genus farther on . The terms Cyclostomata , Ctenostomata , and Cheilostomata , were proposed by Busk , to indicate the primary subdivisions of the marine Gymnolæmatous Polyzoa . ( Voyage of " The Rattlesnake , ' vol . i , Appendix , p ...
Página 11
... genus Pedicellina , complete . The attachment of the endocyst to the base of the tentacular crown closes the cœnæecial chambers externally , while the polypide is thus suspended in the midst of the fluid with which these chambers are ...
... genus Pedicellina , complete . The attachment of the endocyst to the base of the tentacular crown closes the cœnæecial chambers externally , while the polypide is thus suspended in the midst of the fluid with which these chambers are ...
Página 13
... genus . therefore , presents the anomalous condition of having the cœnocium composed exclusively of the endocyst . * * This view of the cœnocium of Cristatella is contrary to the opinion previously expressed by me , but I am now ...
... genus . therefore , presents the anomalous condition of having the cœnocium composed exclusively of the endocyst . * * This view of the cœnocium of Cristatella is contrary to the opinion previously expressed by me , but I am now ...
Página 19
... genus , if we except 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 ...
... genus , if we except 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 ...
Página 22
... genus to include it in this generalization . In no marine poly- zoon has a calyx yet been detected , unless we admit the by no means improbable supposition that it enters partly into the composition of the calyx - like cup which ...
... genus to include it in this generalization . In no marine poly- zoon has a calyx yet been detected , unless we admit the by no means improbable supposition that it enters partly into the composition of the calyx - like cup which ...
Otras ediciones - Ver todas
A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Volumen28 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