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 3
... margin of a crescent - shaped disc . This beautiful tentacular plume is one of its most striking features ; and as Trembley naturally supposed his animal to be intimately related with the polypes , it suggested the name of " Polype à ...
... margin of a crescent - shaped disc . This beautiful tentacular plume is one of its most striking features ; and as Trembley naturally supposed his animal to be intimately related with the polypes , it suggested the name of " Polype à ...
Página 16
... 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 over the mouth , and may be aptly enough compared in shape to the epiglottis of ...
... 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 over the mouth , and may be aptly enough compared in shape to the epiglottis of ...
Página 17
... margin , and is totally destitute of the valve - like appendage which , unless Urnatella should prove an exception , is found in all the other fresh - water species . The upper part of the œsophagus ( fig . 3 , ƒ ) is wide , and may ...
... margin , and is totally destitute of the valve - like appendage which , unless Urnatella should prove an exception , is found in all the other fresh - water species . The upper part of the œsophagus ( fig . 3 , ƒ ) is wide , and may ...
Página 19
... margin of the 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 ...
... margin of the 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 ...
Página 20
... margin of the cup . e . 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 ...
... margin of the cup . e . 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 ...
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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