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 10
... crescentic lophophore , they necessarily exclude not only Pedicellina , but even Fredericella , whose relations with the species furnished with a crescentic lophophore are of the most intimate kind . Hippocrepianism , therefore , though ...
... crescentic lophophore , they necessarily exclude not only Pedicellina , but even Fredericella , whose relations with the species furnished with a crescentic lophophore are of the most intimate kind . Hippocrepianism , therefore , though ...
Página 16
... crescentic form , placed in the centre of the body of the lophophore , and consequently occupying the bottom of the tentacular crater . Its margin is slightly elevated , and is continuous on the neural side , with a hol ow valve - like ...
... crescentic form , placed in the centre of the body of the lophophore , and consequently occupying the bottom of the tentacular crater . Its margin is slightly elevated , and is continuous on the neural side , with a hol ow valve - like ...
Página 19
... crescentic lophophores the arms of the crescent are tubular and open into this space ; the interior of the arms is clothed with vibratile cilia . I have had an oppor- * The structure of Pedicellina has been hitherto entirely ...
... crescentic lophophores the arms of the crescent are tubular and open into this space ; the interior of the arms is clothed with vibratile cilia . I have had an oppor- * The structure of Pedicellina has been hitherto entirely ...
Página 31
... crescentic lophophores , the ganglion may be seen giving off from each side a rather thick chord ( Pl . II , fig . 24 , a ) which immediately enters the tubular arms of the lophophore , and then , after giving off a branch which runs ...
... crescentic lophophores , the ganglion may be seen giving off from each side a rather thick chord ( Pl . II , fig . 24 , a ) which immediately enters the tubular arms of the lophophore , and then , after giving off a branch which runs ...
Página 36
... nutrition of the colony , but has become an independent zooid , obtaining its food from without , and submitting it to the action of its own digestive system . The development of the bud in the species with crescentic 36 GEMMATION .
... nutrition of the colony , but has become an independent zooid , obtaining its food from without , and submitting it to the action of its own digestive system . The development of the bud in the species with crescentic 36 GEMMATION .
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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