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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Página 93
... specific character . It must be recollected , however , that unless the difference in the number of tentacula amounts to ten or fifteen , it can scarcely be relied on as a specific character , and the condition of the calyx , though ...
... specific character . It must be recollected , however , that unless the difference in the number of tentacula amounts to ten or fifteen , it can scarcely be relied on as a specific character , and the condition of the calyx , though ...
Página 108
... Specific character . - Cœnocium adherent , irregularly branched ; cells somewhat dilated towards the orifices , with a furrow carinated . Tentacula about fifty ; festooning of calyx deep and distinct . Statoblasts broad . SYNONYM ...
... Specific character . - Cœnocium adherent , irregularly branched ; cells somewhat dilated towards the orifices , with a furrow carinated . Tentacula about fifty ; festooning of calyx deep and distinct . Statoblasts broad . SYNONYM ...
Página 114
... specific name articulata , originally applied to this species by Ehrenberg , was sufficiently significant , so long as the animal was described as a species of Alcyonella ; it is now , however , quite inapplicable , for it possesses no ...
... specific name articulata , originally applied to this species by Ehrenberg , was sufficiently significant , so long as the animal was described as a species of Alcyonella ; it is now , however , quite inapplicable , for it possesses no ...
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