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
... Gervais . The Hippocrepia of the French zoologist , however , constitute in reality an artificial group . Being essentially characterised by the possession of a crescentic lophophore , they necessarily exclude not only Pedicellina , but ...
... Gervais . The Hippocrepia of the French zoologist , however , constitute in reality an artificial group . Being essentially characterised by the possession of a crescentic lophophore , they necessarily exclude not only Pedicellina , but ...
Página 60
... Gervais at Plessis - Piquet , near Paris , and for which this naturalist found it necessary to constitute a new genus under the name of Fredericella . Blumenbach characterises it in his manual as " Tubularia crista infundibuliformi , ad ...
... Gervais at Plessis - Piquet , near Paris , and for which this naturalist found it necessary to constitute a new genus under the name of Fredericella . Blumenbach characterises it in his manual as " Tubularia crista infundibuliformi , ad ...
Página 65
... Gervais , who subsequently found it at Plessis - Piquet , near Paris , saw the necessity of characterising it as the type of a new genus , to which he gave the name of Paludicella.¶ In 1837 , Mr. William Thompson , of Belfast ...
... Gervais , who subsequently found it at Plessis - Piquet , near Paris , saw the necessity of characterising it as the type of a new genus , to which he gave the name of Paludicella.¶ In 1837 , Mr. William Thompson , of Belfast ...
Página 66
... Gervais gives an analysis of the memoir of M. Dumortier , and contends against the right of the " Polype à Panache " to assume the position of a distinct genus , insisting on its being nothing more than a Plumatella . In the year 1837 ...
... Gervais gives an analysis of the memoir of M. Dumortier , and contends against the right of the " Polype à Panache " to assume the position of a distinct genus , insisting on its being nothing more than a Plumatella . In the year 1837 ...
Página 67
... Gervais published another memoir on the fresh - water Polyzoa . * In this memoir he constitutes a distinct genus , under the name of Paludicella , for Ehrenberg's Alcyonella articulata ; and he further makes an important step in the ...
... Gervais published another memoir on the fresh - water Polyzoa . * In this memoir he constitutes a distinct genus , under the name of Paludicella , for Ehrenberg's Alcyonella articulata ; and he further makes an important step in the ...
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
action adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella described detected disc distinct Dumortier ectocyst edit endocyst entire epistome examined existence extending external extremity fibres fluid Fredericella fresh-water Polyzoa genera genus Gervais gives Hancock Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens resemblance retraction retractor Rösel seen separated sheath side space species specimens statoblasts stomach stones structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young