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 5
... alimentary canal , and made himself master of almost every important point in their structure . He also perceived their close relation to the compound Ascidia , and was the first to designate them by a distinct name which no longer ...
... alimentary canal , and made himself master of almost every important point in their structure . He also perceived their close relation to the compound Ascidia , and was the first to designate them by a distinct name which no longer ...
Página 7
... Alimentary canal . c . Anus . d . Nervous ganglion . e . Membranous investing sac . f . Testis . f ' . Ovary . g . Retractor muscle . Let us imagine an alimentary canal , consisting of œsophagus , stomach , and intestine , to be ...
... Alimentary canal . c . Anus . d . Nervous ganglion . e . Membranous investing sac . f . Testis . f ' . Ovary . g . Retractor muscle . Let us imagine an alimentary canal , consisting of œsophagus , stomach , and intestine , to be ...
Página 8
... digestive tube , tentacula , ganglion , muscles , generative organs , circumambient fluid , and investing sacs ... alimentary canal . The terms now enumerated are such as I believe the nature of the subject strictly requires . I ...
... digestive tube , tentacula , ganglion , muscles , generative organs , circumambient fluid , and investing sacs ... alimentary canal . The terms now enumerated are such as I believe the nature of the subject strictly requires . I ...
Página 10
... alimentary canal ) corresponds in part with the Hippocrepia of Gervais . The Hippocrepia of the French zoologist , however , constitute in reality an artificial group . Being essentially characterised by the possession of a crescentic ...
... alimentary canal ) corresponds in part with the Hippocrepia of Gervais . The Hippocrepia of the French zoologist , however , constitute in reality an artificial group . Being essentially characterised by the possession of a crescentic ...
Página 15
... digestive system is very similar in all those species in which the lophophore is bilateral ( Phylactolæmata ) ; these we shall therefore consider together ; Paludicella , which , with the exception of Urnatella ( ? ) , is the only fresh ...
... digestive system is very similar in all those species in which the lophophore is bilateral ( Phylactolæmata ) ; these we shall therefore consider together ; Paludicella , which , with the exception of Urnatella ( ? ) , is the only fresh ...
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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 character cilia cœnæcium 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 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