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 36
Página 13
... condition of the endocyst of Lophopus , though most probably only abnormal , must be mentioned here . In specimens of this Polyzoon which had been kept for a few days , and occasionally in some just captured , multitudes of minute oval ...
... condition of the endocyst of Lophopus , though most probably only abnormal , must be mentioned here . In specimens of this Polyzoon which had been kept for a few days , and occasionally in some just captured , multitudes of minute oval ...
Página 19
... condition of the lophophore is found in no marine species . In Fredericella the arms of the crescent are obsolete , and the lophophore here may , on a superficial view , appear orbicular ; but a careful examination will render manifest ...
... condition of the lophophore is found in no marine species . In Fredericella the arms of the crescent are obsolete , and the lophophore here may , on a superficial view , appear orbicular ; but a careful examination will render manifest ...
Página 20
... condition of opening within the tentacular crater . It will be easily seen , however , that the position of the anus though within the circle of tentacula is still properly external to the lophophore , and thus really occupies its ...
... condition of opening within the tentacular crater . It will be easily seen , however , that the position of the anus though within the circle of tentacula is still properly external to the lophophore , and thus really occupies its ...
Página 21
... condition would also seem to exist in other genera , but it is nowhere so well marked as in Cristatella . In all the fresh - water genera , with the exception of Paludicella , and possibly of Urnatella , the entire plume of tentacula is ...
... condition would also seem to exist in other genera , but it is nowhere so well marked as in Cristatella . In all the fresh - water genera , with the exception of Paludicella , and possibly of Urnatella , the entire plume of tentacula is ...
Página 26
... condition of the corresponding parts in Paludicella , as well as in certain marine Polyzoa , is altogether in favour of their muscularity ; but they do not always present the appearance of distinct fibrous fascicles , and I have been ...
... condition of the corresponding parts in Paludicella , as well as in certain marine Polyzoa , is altogether in favour of their muscularity ; but they do not always present the appearance of distinct fibrous fascicles , and I have been ...
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