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 7
... homology or derivation from an archetype - as can be conveyed of the essential structure of a Polyzoon in its simplest and most generalised condition . To give , however , more actuality to our ideal Polyzoon , we may bear in mind that ...
... homology or derivation from an archetype - as can be conveyed of the essential structure of a Polyzoon in its simplest and most generalised condition . To give , however , more actuality to our ideal Polyzoon , we may bear in mind that ...
Página 8
... homologous , the purposes of a rigidly scientific description can , I believe , only be served by some such change as that suggested . Besides these terms , and some which will be explained as they occur , two others in common use ought ...
... homologous , the purposes of a rigidly scientific description can , I believe , only be served by some such change as that suggested . Besides these terms , and some which will be explained as they occur , two others in common use ought ...
Página 20
... homologous with the calyx of the ordinary hippocrepian Polyzoa , but would seem rather to represent a permanently invaginated portion of the endocyst , with which , however , a true calyx equivalent to that of the fresh- structure ; it ...
... homologous with the calyx of the ordinary hippocrepian Polyzoa , but would seem rather to represent a permanently invaginated portion of the endocyst , with which , however , a true calyx equivalent to that of the fresh- structure ; it ...
Página 21
... homologous with the vaginal sphincter , which is nothing more than a peculiar development of these muscles in the invagi- nated endocyst . The retractor fibres are obviously homologous with the great retractor muscles of the others ...
... homologous with the vaginal sphincter , which is nothing more than a peculiar development of these muscles in the invagi- nated endocyst . The retractor fibres are obviously homologous with the great retractor muscles of the others ...
Página 22
... homologous with the posterior part of the cell in the unstalked forms of Polyzoa . It is simply this portion of the cell become so much constricted as to be no longer capable of containing the polypide , which is in consequence pushed ...
... homologous with the posterior part of the cell in the unstalked forms of Polyzoa . It is simply this portion of the cell become so much constricted as to be no longer capable of containing the polypide , which is in consequence pushed ...
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