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
Resultados 1-3 de 21
Página 18
... action of the walls is more marked in it than in any other part of the gastric cavity , while it is every now and then separated from the rest of this cavity by a momentary hour - glass constriction . In the œsophagus there are only two ...
... action of the walls is more marked in it than in any other part of the gastric cavity , while it is every now and then separated from the rest of this cavity by a momentary hour - glass constriction . In the œsophagus there are only two ...
Página 26
... action will dilate the invaginated endocyst , and assist in keeping it permanently inverted . ( 6. ) Posterior Parieto - vaginal Muscles . These consist of several radiating bands ( Pl . IV , fig . 4 ; V , figs . 5 , 6 ; IX , fig . 7 ...
... action will dilate the invaginated endocyst , and assist in keeping it permanently inverted . ( 6. ) Posterior Parieto - vaginal Muscles . These consist of several radiating bands ( Pl . IV , fig . 4 ; V , figs . 5 , 6 ; IX , fig . 7 ...
Página 28
... action of the anterior parieto - vaginal muscles assists in the invagination of the tube , and dilates it when completely retracted ; they thus act as antagonistic to the vaginal sphincter , while the posterior fibres will check the ...
... action of the anterior parieto - vaginal muscles assists in the invagination of the tube , and dilates it when completely retracted ; they thus act as antagonistic to the vaginal sphincter , while the posterior fibres will check the ...
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