A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28Ray Society, 1856 - 119 páginas |
Dentro del libro
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Página 93
... septa would seem to occur generally throughout Alcyonella , Plumatella , and Fredericella , while in Paludicella these septa acquire their maximum in development and constancy , and become thus one of the most striking features of the ...
... septa would seem to occur generally throughout Alcyonella , Plumatella , and Fredericella , while in Paludicella these septa acquire their maximum in development and constancy , and become thus one of the most striking features of the ...
Página 99
... septa are most apparent , indeed , I have met with specimens of the free variation of this species in which well - formed septa occurred between almost every cell , while the elongated claviform figure of the cells increased the ...
... septa are most apparent , indeed , I have met with specimens of the free variation of this species in which well - formed septa occurred between almost every cell , while the elongated claviform figure of the cells increased the ...
Página 113
... septa , together with several peculiarities in its internal structure already described , remove it by a well - marked interval from the other genera of the present mono- graph , and approximate it to certain marine representations of ...
... septa , together with several peculiarities in its internal structure already described , remove it by a well - marked interval from the other genera of the present mono- graph , and approximate it to certain marine representations of ...
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