A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 99
_—*— small extent, as thin submerged stems, straws, &_c., and as it continues to
increase in size, the branches having no extensive surface of attachment," soon
become free, and a more or less entangled bushy mass will be produced.
_—*— small extent, as thin submerged stems, straws, &_c., and as it continues to
increase in size, the branches having no extensive surface of attachment," soon
become free, and a more or less entangled bushy mass will be produced.
Página 109
It is throughout closely adherent to the surface on which it grows, and is very
remarkable by its mode of development in two distinct groups of branches, which
are united to one another by a simple connecting tube, from which they extend in
...
It is throughout closely adherent to the surface on which it grows, and is very
remarkable by its mode of development in two distinct groups of branches, which
are united to one another by a simple connecting tube, from which they extend in
...
Página 114
The adherent portion extends over the under surface of stones as a branched
confervoid growth, the branches being given off either opposite to one another in
pairs, or else singly, the development of the opposite branches being in the latter
...
The adherent portion extends over the under surface of stones as a branched
confervoid growth, the branches being given off either opposite to one another in
pairs, or else singly, the development of the opposite branches being in the latter
...
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A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Volumen28 George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent Alcyonella alimentary canal Allman anatomical animal annulus Ascidian attached become Beneden branches branchial sac Brit Brux campanulata cavity cell cilia coenoecium confined crescentic Cristatella mucedo d’eau douce described disc distinct Dumortier ectocyst embryo endocyst epistome exserted external fibres fig filament filled find first floating fluid Flustrae Fredericella fresh-water Polyzoa funiculus ganglion gemma genera genus Gervais Hancock hippocrepian Hist homologous intestine invaginated l’Acad Lamarck layer Leidy Lop/zopus lophophore Lophopus magnified margin Mém membrane memoir Meyen Miiller mouth Naisa naturalists observed oesophagus orifice Original figures ovary ovum Paludicella peculiar Pedicellina perigastric space Plumatella repens Polype Polype a Panache polypide Polyzoon portion posterior present Raspail respiratory retraction retractor retractor muscles Rosel seen septa side sinus species specific specimens statoblasts stomach structure sultana surface tentacles tentacula tentacular crown tentacular sheath thoracic chamber transparent transverse Trembley tubes Tubularia repens tunic Tunicata Urnatella walls Zooph