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 14
... consists of a membranous tunic of great delicacy , apparently enclosing a perfectly transparent and colourless fluid , probably in the meshes of a sort of areolar tissue . I have not , however , succeeded in making out in it any ...
... consists of a membranous tunic of great delicacy , apparently enclosing a perfectly transparent and colourless fluid , probably in the meshes of a sort of areolar tissue . I have not , however , succeeded in making out in it any ...
Página 26
... consist of numerous short bands ( Pl . IV , fig . 4 ; V , figs . 5 , 6 ; IX , fig . 7 , 8 ) , which arise all round from the inner surface of the endocyst , commencing close to the line of invagi- nation , and extending for some ...
... consist of numerous short bands ( Pl . IV , fig . 4 ; V , figs . 5 , 6 ; IX , fig . 7 , 8 ) , which arise all round from the inner surface of the endocyst , commencing close to the line of invagi- nation , and extending for some ...
Página 43
... consist ; in other words , to determine the homologous organs in the two groups . I had elsewhere * attempted to ... consists essentially of a membranous sac , having the inner surface of its walls covered by two sets of tubular bars ...
... consist ; in other words , to determine the homologous organs in the two groups . I had elsewhere * attempted to ... consists essentially of a membranous sac , having the inner surface of its walls covered by two sets of tubular bars ...
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