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 34
... walls of the cavity by irregular transverse bands ; these bands check the entire evagination of the membrane , but after a time they disappear , and then the unlining and evagination are perfect . In the interior of the protrusible ...
... walls of the cavity by irregular transverse bands ; these bands check the entire evagination of the membrane , but after a time they disappear , and then the unlining and evagination are perfect . In the interior of the protrusible ...
Página 36
... walls of the cell ; the thick , fleshy mass , by which the body of the polypide was connected with the cell - walls , has become lengthened and divided into two chords , the anterior and posterior funiculus ; the tentacula continue to ...
... walls of the cell ; the thick , fleshy mass , by which the body of the polypide was connected with the cell - walls , has become lengthened and divided into two chords , the anterior and posterior funiculus ; the tentacula continue to ...
Página 52
... walls of this cavity are at first in close apposition with those of the thoracic chamber , which completely encloses it , so that the two cavities at this stage appear as one , being exactly co - extensive ; we soon perceive , however ...
... walls of this cavity are at first in close apposition with those of the thoracic chamber , which completely encloses it , so that the two cavities at this stage appear as one , being exactly co - extensive ; we soon perceive , however ...
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