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
... mouth ( Pl . II , fig . 24 , d ) is a simple edentulous orifice of a circular or slightly crescentic form , placed in the centre of the body of the lophophore , and consequently occupying the bottom of the tentacular crater . Its margin ...
... mouth ( Pl . II , fig . 24 , d ) is a simple edentulous orifice of a circular or slightly crescentic form , placed in the centre of the body of the lophophore , and consequently occupying the bottom of the tentacular crater . Its margin ...
Página 17
... mouth , and at the concave side of the lophophore . b . Gymnolæmata . 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 ...
... mouth , and at the concave side of the lophophore . b . Gymnolæmata . 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 ...
Página 18
... mouth and upper part of the œsophagus are in all the genera clothed with vibratile cilia , but I could detect no appearance of cilia further than a short distance down this tube . The structure of the intestine closely resembles that of ...
... mouth and upper part of the œsophagus are in all the genera clothed with vibratile cilia , but I could detect no appearance of cilia further than a short distance down this tube . The structure of the intestine closely resembles that of ...
Página 19
... mouth ; and secondly , a series of tentacula ( 1 ) which are borne upon the margin of the lophophore . The lophophore is throughout almost the entire class of an orbicular figure ; but in the fresh - water genera Cristatella , Lophopus ...
... mouth ; and secondly , a series of tentacula ( 1 ) which are borne upon the margin of the lophophore . The lophophore is throughout almost the entire class of an orbicular figure ; but in the fresh - water genera Cristatella , Lophopus ...
Página 20
... Mouth . f . Esophagus . g . Stomach . h . Rectum . i . Anus . k . Epistome . 7. Ganglion . m . Generative organ . n . Retractor muscle . o . Lophophore . The tentacula are connected to one another at their base by a membrane which ...
... Mouth . f . Esophagus . g . Stomach . h . Rectum . i . Anus . k . Epistome . 7. Ganglion . m . Generative organ . n . Retractor muscle . o . Lophophore . The tentacula are connected to one another at their base by a membrane which ...
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