A Monograph of the Fresh-water Polyzoa: Including All the Known Species, Both British and Foreign |
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Página 7
... membranous sac with two openings , one for the mouth and the other for the vent ; the tentacula alone being external to the sac . Let us still further suppose the alimentary tube , by means of a system of muscles , to admit of being ...
... membranous sac with two openings , one for the mouth and the other for the vent ; the tentacula alone being external to the sac . Let us still further suppose the alimentary tube , by means of a system of muscles , to admit of being ...
Página 8
The part of the cell through which the polypide admits of protrusion and retraction is the orifice of the cell . * Πολυποὺς , εἶδος . † Κοινὸς , οἰκίον . † Εκτος , κύστις . Επι , στομα . § ̓́Ενδον , κύστις . || Λόφος , φορέω .
The part of the cell through which the polypide admits of protrusion and retraction is the orifice of the cell . * Πολυποὺς , εἶδος . † Κοινὸς , οἰκίον . † Εκτος , κύστις . Επι , στομα . § ̓́Ενδον , κύστις . || Λόφος , φορέω .
Página 9
... before him here the following scheme of the orders and sub - orders under which all the species of Polyzoa , both marine and fresh - water , admit of being arranged : * English Cyclopædia , ' 1855 , article " Mollusca ; " and Phil .
... before him here the following scheme of the orders and sub - orders under which all the species of Polyzoa , both marine and fresh - water , admit of being arranged : * English Cyclopædia , ' 1855 , article " Mollusca ; " and Phil .
Página 12
In Paludicella , whose transparent ectocyst admits of a distinct view of all the contained parts , the fibres are collected into numerous transverse bands ( Pl . X , figs . 3 , 4 , v ) , which we may trace throughout the whole extent of ...
In Paludicella , whose transparent ectocyst admits of a distinct view of all the contained parts , the fibres are collected into numerous transverse bands ( Pl . X , figs . 3 , 4 , v ) , which we may trace throughout the whole extent of ...
Página 14
Compl . t . xvi . † Van Beneden , Recherches sur les Bryozoaires fluviatiles de Belgique . Mém . de l'Acad . Roy . le Belg . , ' 1848 . 6 itself is imperfect , admitting of a communication through its 14 DERMAL SYSTEM .
Compl . t . xvi . † Van Beneden , Recherches sur les Bryozoaires fluviatiles de Belgique . Mém . de l'Acad . Roy . le Belg . , ' 1848 . 6 itself is imperfect , admitting of a communication through its 14 DERMAL SYSTEM .
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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
action adherent admit Alcyonella alimentary canal Allman already anatomy animal appearance Ascidian attached become Beneden bodies branches branchial British 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 Hancock 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 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