A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 1-5 de 22
Página 9
... posterior we may assume the position of the mouth as indicating the region of the animal which is to be designated as anterior , while the posterior region will then be that diametrically opposite . In fixing the dorsal and ventral ...
... posterior we may assume the position of the mouth as indicating the region of the animal which is to be designated as anterior , while the posterior region will then be that diametrically opposite . In fixing the dorsal and ventral ...
Página 11
... posterior part of the cœnocium , but more closely approximated towards the orifices . These cells are filled with a perfectly colourless and transparent fluid . Under the action of acetic acid each is distinctly seen to be bounded by a ...
... posterior part of the cœnocium , but more closely approximated towards the orifices . These cells are filled with a perfectly colourless and transparent fluid . Under the action of acetic acid each is distinctly seen to be bounded by a ...
Página 12
... posteriorly . In Paludicella , whose transparent ectocyst admits of a distinct view of all the contained parts , the fibres are collected into numerous transverse bands ( Pl . X , figs . 3 , 4 , v ) , which we may trace throughout the ...
... posteriorly . In Paludicella , whose transparent ectocyst admits of a distinct view of all the contained parts , the fibres are collected into numerous transverse bands ( Pl . X , figs . 3 , 4 , v ) , which we may trace throughout the ...
Página 22
... posterior part of the cell in the unstalked forms of Polyzoa . It is simply this portion of the cell become so much constricted as to be no longer capable of containing the polypide , which is in consequence pushed onwards into the ...
... posterior part of the cell in the unstalked forms of Polyzoa . It is simply this portion of the cell become so much constricted as to be no longer capable of containing the polypide , which is in consequence pushed onwards into the ...
Página 26
... Posterior Parieto - vaginal Muscles . These consist of several radiating bands ( Pl . IV , fig . 4 ; V , figs . 5 , 6 ; IX , fig . 7 , t ) , longer and stronger than the last , behind which they arise , from the inner surface of the ...
... Posterior Parieto - vaginal Muscles . These consist of several radiating bands ( Pl . IV , fig . 4 ; V , figs . 5 , 6 ; IX , fig . 7 , t ) , longer and stronger than the last , behind which they arise , from the inner surface of the ...
Otras ediciones - Ver todas
A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
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 Linnæus 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