A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
Dentro del libro
Resultados 6-10 de 23
Página 21
... constitutes a dark brown glandular mass composed of distinct cells , which are filled with the characteristic brown secretion . The rest of the stomach , as well as the œsophagus , is lined with vibratile cilia , which are especially ...
... constitutes a dark brown glandular mass composed of distinct cells , which are filled with the characteristic brown secretion . The rest of the stomach , as well as the œsophagus , is lined with vibratile cilia , which are especially ...
Página 22
... constitutes the proper cell . The muscles of the stalk have their represen- tative in the muscles developed in the walls of the cell of Polyzoa . Between the œsophagus and rectum , but separated from the latter by the whole mass of the ...
... constitutes the proper cell . The muscles of the stalk have their represen- tative in the muscles developed in the walls of the cell of Polyzoa . Between the œsophagus and rectum , but separated from the latter by the whole mass of the ...
Página 27
... constitute four strong fasciculi ( Pl . X , figs . 3 , 4 , 8 ) , which , arising from the sides of the cell near the top , are inserted into the opposed surface of the invaginated endocyst . The fibres of each fasciculus are inserted ...
... constitute four strong fasciculi ( Pl . X , figs . 3 , 4 , 8 ) , which , arising from the sides of the cell near the top , are inserted into the opposed surface of the invaginated endocyst . The fibres of each fasciculus are inserted ...
Página 29
... constitutes the extreme limit of eversion , and that portion of the invaginated endocyst which lies between it and the mouth of the cell remains permanently invaginated . In Paludicella the process is somewhat more complicated ; here ...
... constitutes the extreme limit of eversion , and that portion of the invaginated endocyst which lies between it and the mouth of the cell remains permanently invaginated . In Paludicella the process is somewhat more complicated ; here ...
Página 35
... constitute the cell of the adult polyzoon . The subsequent changes are produced by the gemmation of new polypides , with their proper ectocysts and endocysts . Plumatella fruticosa presents similar developmental phenomena ; the ciliated ...
... constitute the cell of the adult polyzoon . The subsequent changes are produced by the gemmation of new polypides , with their proper ectocysts and endocysts . Plumatella fruticosa presents similar developmental phenomena ; the ciliated ...
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