A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28Ray Society, 1856 - 119 páginas |
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... species , by certain remarkable peculiarities of structure , throw an unexpected light on the general plan and affinities of the class . In the preparation of the monograph no trouble has been spared to render it as complete as possible ...
... species , by certain remarkable peculiarities of structure , throw an unexpected light on the general plan and affinities of the class . In the preparation of the monograph no trouble has been spared to render it as complete as possible ...
Página 70
... species is encumbered . This was facilitated by distinguishing two variations which P. repens is found to assume , according as it grows upon surfaces of small or large extent , and from not attending to which much confusion had arisen ...
... species is encumbered . This was facilitated by distinguishing two variations which P. repens is found to assume , according as it grows upon surfaces of small or large extent , and from not attending to which much confusion had arisen ...
Página 110
... species in having the tentacula disposed in a circle instead of forming a crescent . This circular disposition of the tentacula , which at once distinguishes Blumenbach's animal from all the other fresh - water species except ...
... species in having the tentacula disposed in a circle instead of forming a crescent . This circular disposition of the tentacula , which at once distinguishes Blumenbach's animal from all the other fresh - water species except ...
Otras ediciones - Ver todas
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 longitudinal 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