A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 19
3, 4, lc) which surrounds the. mouth; and secondly, a series of tentacula (l) which
are borne upon the margin of the lophophore. The lophophore is throughout
almost the entire class of an orbicular figure; but in the fresh-water genera
Cristatella ...
3, 4, lc) which surrounds the. mouth; and secondly, a series of tentacula (l) which
are borne upon the margin of the lophophore. The lophophore is throughout
almost the entire class of an orbicular figure; but in the fresh-water genera
Cristatella ...
Página 48
However interesting the /u7_ppocrepian Polyzoa may be in directly indicating the
relations here dwelt on, the infundibulate genera present no difiiculty, for the
orbicular lophophore, after all, is but an unimportant modification of the crescentic
, ...
However interesting the /u7_ppocrepian Polyzoa may be in directly indicating the
relations here dwelt on, the infundibulate genera present no difiiculty, for the
orbicular lophophore, after all, is but an unimportant modification of the crescentic
, ...
Página 76
CONDENSED SYNOPSIS or ran OnnEas, SUB-ORDERS, FAMILIES, AND
GENERA. The fresh-water Polyzoa admit of being divided into eight generic
groups. mination of these is very easy in the living animal; but as some of the
genera are ...
CONDENSED SYNOPSIS or ran OnnEas, SUB-ORDERS, FAMILIES, AND
GENERA. The fresh-water Polyzoa admit of being divided into eight generic
groups. mination of these is very easy in the living animal; but as some of the
genera are ...
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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