A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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Página 27
Retractor Muscle of the Polypide . ... Mr. Hancock * enumerates , under the name
of superior tube retractors , two small additional fasciculi , which he describes as
originating below those just mentioned , and as inserted also below them into ...
Retractor Muscle of the Polypide . ... Mr. Hancock * enumerates , under the name
of superior tube retractors , two small additional fasciculi , which he describes as
originating below those just mentioned , and as inserted also below them into ...
Página 28
... and I prefer viewing the “ superior tube - retractors ” of 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 ...
... and I prefer viewing the “ superior tube - retractors ” of 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 ...
Página 30
longer pressed upon by the contraction of the endocyst , the great retractor
muscles act directly on the polypide and withdraw it into the cell , the anterior and
posterior parietovaginal muscles in Paludicella drawing after it as it descends
that ...
longer pressed upon by the contraction of the endocyst , the great retractor
muscles act directly on the polypide and withdraw it into the cell , the anterior and
posterior parietovaginal muscles in Paludicella drawing after it as it descends
that ...
Página 34
... stomach , and intestine begin to be distinguishable . The great retractor
muscles have become evident , and the funiculus may be seen extending from
the base of the polypide to the walls of the sac ( Pl . XI , fig . 31 ) . The polypides
have , at ...
... stomach , and intestine begin to be distinguishable . The great retractor
muscles have become evident , and the funiculus may be seen extending from
the base of the polypide to the walls of the sac ( Pl . XI , fig . 31 ) . The polypides
have , at ...
Página 36
Some delicate fibres , the rudiments of the retractor of the polypide , may now be
plainly seen extending from just behind the lophophore to the walls of the cell .
The body of the polypide at the spot directly opposite to the rudimental crown of ...
Some delicate fibres , the rudiments of the retractor of the polypide , may now be
plainly seen extending from just behind the lophophore to the walls of the cell .
The body of the polypide at the spot directly opposite to the rudimental crown of ...
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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 ..., Tema 28 George James Allman Vista de fragmentos - 1856 |
Términos y frases comunes
adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British cćnćcium cavity cell character cilia closely complete condition connected consists constitutes contained continuous corresponding Cristatella described detected disc distinct Dumortier ectocyst edit endocyst entire epistome examined existence extending external extremity fibres fluid Fredericella fresh-water Polyzoa genera genus Gervais gives Hist important internal latter layer Leidy lophophore Lophopus margin mass Mém membrane memoir minute mouth muscles Natural naturalists nearly observed occur organ orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens represented resemblance retraction retractor Rösel seen separated sheath side space species specimens statoblasts stomach stones structure surface surrounding tentacula transparent transverse Trembley true tubes Tubularia tunic Tunicata walls whole young