A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28Ray Society, 1856 - 119 páginas |
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Página 13
... transparency and want of colour of their contents , they escape detection under ordinary circumstances , and are first ... transparent space does not here exist . In Cristatella ( Pl . I ) the ectocyst would seem to be entirely absent ...
... transparency and want of colour of their contents , they escape detection under ordinary circumstances , and are first ... transparent space does not here exist . In Cristatella ( Pl . I ) the ectocyst would seem to be entirely absent ...
Página 25
... transparent spaces in the lophophore . * ( 4. ) Elevator Muscle of the Epistome . This is a small but very evident fasciculus ( Pl . II , fig . 24 , r ) , occupying the interior of the epistome , and visible through its transparent ...
... transparent spaces in the lophophore . * ( 4. ) Elevator Muscle of the Epistome . This is a small but very evident fasciculus ( Pl . II , fig . 24 , r ) , occupying the interior of the epistome , and visible through its transparent ...
Página 108
... transparent condition , which it retains as far as the orifice . This transparent portion is frequently dotted with minute brown points . The caly- ciform membrane of the polypide is nearly as deeply festooned as in Fredericella , and ...
... transparent condition , which it retains as far as the orifice . This transparent portion is frequently dotted with minute brown points . The caly- ciform membrane of the polypide is nearly as deeply festooned as in Fredericella , and ...
Otras ediciones - Ver todas
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 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