A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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... the species , some difficulty has been experienced . I have however , deemed it best to describe as a distinct species every well - marked variation of form which I could not find connected by intermediate gradations with.
... the species , some difficulty has been experienced . I have however , deemed it best to describe as a distinct species every well - marked variation of form which I could not find connected by intermediate gradations with.
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... connected by intermediate gradations with other forms , and which could not , with probability , be referred to the accidental influence of external agencies . It is possible that some of the forms here described as distinct species may ...
... connected by intermediate gradations with other forms , and which could not , with probability , be referred to the accidental influence of external agencies . It is possible that some of the forms here described as distinct species may ...
Página 2
... connection with so absurd and visionary a doctrine . ‡ Among those , however , who saw something more than the mere dreams of a visionary in the doctrines of Peysonelle , was the celebrated botanist , Bernard de Jussieu . He felt their ...
... connection with so absurd and visionary a doctrine . ‡ Among those , however , who saw something more than the mere dreams of a visionary in the doctrines of Peysonelle , was the celebrated botanist , Bernard de Jussieu . He felt their ...
Página 5
... connection of their structure with that of the Ascidia , and the important bearing of this connection on their systematic rank . * Cuvier had already determined a striking difference of structure between the Sertularian Polypes and ...
... connection of their structure with that of the Ascidia , and the important bearing of this connection on their systematic rank . * Cuvier had already determined a striking difference of structure between the Sertularian Polypes and ...
Página 11
... connected with one another . Each chamber lodges a polypide , and its cavity is either shut off from those of the neighbouring chambers , or freely communicates with them . In every instance * the polypide can be protruded from its cell ...
... connected with one another . Each chamber lodges a polypide , and its cavity is either shut off from those of the neighbouring chambers , or freely communicates with them . In every instance * the polypide can be protruded from its cell ...
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