A manual of zoologyWilliam Blackwood & Sons, 1878 |
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Side 143
... have lobed and crimped organs attached to or near the tentacles , which have been supposed to act as breathing - organs ; whilst structures supposed A to be gills are developed in some Zoanthids on. CELENTERATA : ACTINOZOA . 143.
... have lobed and crimped organs attached to or near the tentacles , which have been supposed to act as breathing - organs ; whilst structures supposed A to be gills are developed in some Zoanthids on. CELENTERATA : ACTINOZOA . 143.
Side 144
Henry Alleyne Nicholson. A to be gills are developed in some Zoanthids on either side of the primary mesenteries . Thread - cells , often of very complicated structure , are almost universally present , some few forms having been ...
Henry Alleyne Nicholson. A to be gills are developed in some Zoanthids on either side of the primary mesenteries . Thread - cells , often of very complicated structure , are almost universally present , some few forms having been ...
Side 189
... gill - like organs placed round the mouth , which are of the nature of greatly developed tube - feet , and which are not uni- versally present ; partly by the tube - feet and their secondary vesicles in general ; and partly by the ...
... gill - like organs placed round the mouth , which are of the nature of greatly developed tube - feet , and which are not uni- versally present ; partly by the tube - feet and their secondary vesicles in general ; and partly by the ...
Side 223
... gills of fishes , crustaceans , and other animals . From the absence of a perivisceral cavity , the Trematoda were formed by Cuvier into a separate division of Entozoa , under the name of Vers Intes- tinaux Parenchymateux , along with ...
... gills of fishes , crustaceans , and other animals . From the absence of a perivisceral cavity , the Trematoda were formed by Cuvier into a separate division of Entozoa , under the name of Vers Intes- tinaux Parenchymateux , along with ...
Side 244
... gills or branchiæ . The nervous system consists of a double , ventral , gangliated cord , which is traversed anteriorly by the oesophagus ; the " præ - œsophageal , " or " cerebral , " ganglia being connected by lateral cords or ...
... gills or branchiæ . The nervous system consists of a double , ventral , gangliated cord , which is traversed anteriorly by the oesophagus ; the " præ - œsophageal , " or " cerebral , " ganglia being connected by lateral cords or ...
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Manual of Zoology ...: With a General Introduction on the Principles of Zoology Henry Alleyne Nicholson Ingen forhåndsvisning tilgjengelig - 2015 |
Vanlige uttrykk og setninger
abdomen adult alimentary canal ambulacral amongst animal Annelides antennæ anus aperture appendages Arachnida articulated attached birds bivalve body bones Brachiopoda branchiæ branchial calcareous carapace cavity cephalothorax chitinous ciliated composed comprising consists contractile Crustacea Ctenophora developed disc distinct division dorsal embryo Eocene external extinct extremity feet females fins fishes Foraminifera fossil furnished gemmation genera genus gills head horny Huxley Hydrozoa incisors Insects integument intestine known labium larva larvæ legs limbs living locomotive males Mammals mandibles margin maxillæ membrane molars Mollusca mouth nervous system operculum organs ovum Owen pairs Paleozoic parasitic placed plates polypide polypites Polyzoa portion possess posterior present regarded reproductive Reptiles resembling respiratory Rotifera rudimentary Scolecida segments shell side Silurian single skeleton sometimes somites species spines stomach structure sub-order surface tail teeth tentacles termed thorax toes transverse tube upper usually valves ventral Vertebrates vesicle whilst wings Zoantharia zooids