A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and ForeignRay Society, 1856 - 119 páginas |
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... Hancock ) received in this country but little attention ; and yet , even apart from its scientific interest , few departments of microscopic observation will be found to possess more attractiveness . There is scarcely a pond or canal of ...
... Hancock ) received in this country but little attention ; and yet , even apart from its scientific interest , few departments of microscopic observation will be found to possess more attractiveness . There is scarcely a pond or canal of ...
Página 27
... Hancock * enumerates , under the name of superior tube retractors , two small additional fasciculi , which he describes as originating below those just mentioned , and as in- serted also below them into the invaginated tube , their ...
... Hancock * enumerates , under the name of superior tube retractors , two small additional fasciculi , which he describes as originating below those just mentioned , and as in- serted also below them into the invaginated tube , their ...
Página 28
... Hancock as some of the posterior fibres of the anterior parieto - vaginal muscles . The action of the anterior parieto - vaginal muscles assists in the invagination of the tube , and dilates it when completely retracted ; they thus act ...
... Hancock as some of the posterior fibres of the anterior parieto - vaginal muscles . The action of the anterior parieto - vaginal muscles assists in the invagination of the tube , and dilates it when completely retracted ; they thus act ...
Página 53
... Hancock † had maintained the resemblance between the arms of the lophophore in the hippocrepian Polyzoa and the oral arms of the Brachiopoda , a resemblance singularly striking , and pointing to an important homological relation . In ...
... Hancock † had maintained the resemblance between the arms of the lophophore in the hippocrepian Polyzoa and the oral arms of the Brachiopoda , a resemblance singularly striking , and pointing to an important homological relation . In ...
Página 72
... Hancock , already well known by numerous important papers on the anatomy of the Mollusca , but especially by his ... Hancock's descrip- tion of his Paludicella procumbens , I cannot satisfy myself that the characters on which the species ...
... Hancock , already well known by numerous important papers on the anatomy of the Mollusca , but especially by his ... Hancock's descrip- tion of his Paludicella procumbens , I cannot satisfy myself that the characters on which the species ...
Otras ediciones - Ver todas
A Monograph of the Fresh-water Polyzoa: Including All the Known ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
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 crescentic Cristatella Cristatella mucedo d'eau douce described Difflugia disc distinct Dumortier ectocyst Ehrenbergi 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 oesophagus 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