A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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Página 16
... lophophore , and consequently occupying the bottom of the tentacular crater . Its margin is slightly elevated , and is continuous on the neural side , with a hol ow valve - like organ ( e ) of very peculiar formation . This organ arches ...
... lophophore , and consequently occupying the bottom of the tentacular crater . Its margin is slightly elevated , and is continuous on the neural side , with a hol ow valve - like organ ( e ) of very peculiar formation . This organ arches ...
Página 17
... lophophore . b . Gymnolamata . In Paludicella articulata , the mouth ( Pl . X , fig . 5 ) is a perfectly circular orifice , with slightly projectile margin , and is totally destitute of the valve - like appendage which , unless ...
... lophophore . b . Gymnolamata . In Paludicella articulata , the mouth ( Pl . X , fig . 5 ) is a perfectly circular orifice , with slightly projectile margin , and is totally destitute of the valve - like appendage which , unless ...
Página 19
... lophophore . The lophophore is throughout almost the entire class of an orbicular figure ; but in the fresh - water genera Cristatella , Lophopus , Plumatella , and Alcyonella , its neural margin , or that which corresponds to the side ...
... lophophore . The lophophore is throughout almost the entire class of an orbicular figure ; but in the fresh - water genera Cristatella , Lophopus , Plumatella , and Alcyonella , its neural margin , or that which corresponds to the side ...
Página 20
... lophophore into the perigastric space ; in all the Polyzoa they are armed upon their opposed sides with vibratile cilia , arranged in a single series , and vibrating towards the remote extremity of the tentacle upon one side , and ...
... lophophore into the perigastric space ; in all the Polyzoa they are armed upon their opposed sides with vibratile cilia , arranged in a single series , and vibrating towards the remote extremity of the tentacle upon one side , and ...
Página 21
... lophophore in the bottom of the tentacular crater . The concave margin of the body of the lophophore is raised into a kind of thickened rim , which arches over the mouth , so as to constitute an epistome thickly ciliated on its oral ...
... lophophore in the bottom of the tentacular crater . The concave margin of the body of the lophophore is raised into a kind of thickened rim , which arches over the mouth , so as to constitute an epistome thickly ciliated on its oral ...
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 crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst Ehrenbergi 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 longitudinal lophophore Lophopus crystallinus margin Mém membrane memoir Meyen mouth Müller Naisa naturalists observed oesophagus 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