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 17
... oesophagus ( fig . 3 , f ) is wide , and may perhaps here , more decidedly than in the other species , be distinguished as pharynx . It soon contracts into a long narrow tube , which leads to an oval sac ( g ) corresponding to the ...
... oesophagus ( fig . 3 , f ) is wide , and may perhaps here , more decidedly than in the other species , be distinguished as pharynx . It soon contracts into a long narrow tube , which leads to an oval sac ( g ) corresponding to the ...
Página 18
... oesophagus , and totally disappear from this tube and from the rectum . The fundus of the stomach appears to differ ... œsophagus there are only two layers ( Pl . III , fig . 7 , X ' , μ ) . These correspond to the middle and external ...
... oesophagus , and totally disappear from this tube and from the rectum . The fundus of the stomach appears to differ ... œsophagus there are only two layers ( Pl . III , fig . 7 , X ' , μ ) . These correspond to the middle and external ...
Página 55
... oesophagus . a a . Tentaculiferous crescent . b . Mouth . c . Lip . d . Esophagus . e . Intestine . f . Vessel conveying the blood backwards from the tentacula and crescentic disc . gg . The two vessels from whose union the vessel f ...
... oesophagus . a a . Tentaculiferous crescent . b . Mouth . c . Lip . d . Esophagus . e . Intestine . f . Vessel conveying the blood backwards from the tentacula and crescentic disc . gg . The two vessels from whose union the vessel f ...
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 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 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