A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 |
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SUB - ORDERS . Lophophore bilateral ; mouth with an epistome . Arms of
lophophore free or obsolete . LOPHOPEA ( fresh - water ) . or } at }
PHYLACTOLÆMATA . * Arms of lophophore united at the extremities .
PEDICELLINEAI ( marine ) .
SUB - ORDERS . Lophophore bilateral ; mouth with an epistome . Arms of
lophophore free or obsolete . LOPHOPEA ( fresh - water ) . or } at }
PHYLACTOLÆMATA . * Arms of lophophore united at the extremities .
PEDICELLINEAI ( marine ) .
Página 19
3 , 4 , k ) which surrounds the mouth ; and secondly , a series of tentacula ( 1 )
which are borne upon the margin of the lophophore . The lophophore is
throughout almost the entire class of an orbicular figure ; but in the fresh - water
genera ...
3 , 4 , k ) which surrounds the mouth ; and secondly , a series of tentacula ( 1 )
which are borne upon the margin of the lophophore . The lophophore is
throughout almost the entire class of an orbicular figure ; but in the fresh - water
genera ...
Página 37
The development of the bud in the species with crescentic lophophore is
essentially the same as that just described . The first appearance of the bud in
Lophopus is seen near the orifice of the cell , as a minute spherical tubercle ( Pl .
XI , fig .
The development of the bud in the species with crescentic lophophore is
essentially the same as that just described . The first appearance of the bud in
Lophopus is seen near the orifice of the cell , as a minute spherical tubercle ( Pl .
XI , fig .
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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 alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British canal cavity cell character cilia closely complete condition connected consists constitutes contained continuous Cristatella crown 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 organs orifice Original figures Paludicella passes Plumatella Plumatella repens Polype polypide Polyzoon portion present published relations repens 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
Información bibliográfica
| Título | A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, Tema 28 A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign, George James Allman Volumen13 de DE-601)130488305: Ray Society Publications, Ray Society Ray Society, Ray Society Volumen28 de Ray society ... [Publications |
| Autor | George James Allman |
| Editor | Ray Society, 1856 |
| Procedencia del original | Universidad de Illinois en Urbana-Champaign |
| Digitalizado | 13 Oct. 2015 |
| Largo | 119 páginas |
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