A manual of zoologyWilliam Blackwood & Sons, 1878 |
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Resultat 1-5 av 68
Side 53
... Upper . ) 2. Cambrian . ( Lower and Upper , with Huronian rocks ? ) 3. Silurian . ( Lower and Upper . ) 4. Devonian , or Old Red Sandstone . ( Lower , Middle , and Upper . ) 5. Carboniferous . ( Mountain - limestone , Millstone grit ...
... Upper . ) 2. Cambrian . ( Lower and Upper , with Huronian rocks ? ) 3. Silurian . ( Lower and Upper . ) 4. Devonian , or Old Red Sandstone . ( Lower , Middle , and Upper . ) 5. Carboniferous . ( Mountain - limestone , Millstone grit ...
Side 120
... upper end this chamber is a little constricted , and so passes , by a more or less narrowed channel , into a variously - shaped sac , whose walls are directly continuous with its own , and which will henceforward be termed the ...
... upper end this chamber is a little constricted , and so passes , by a more or less narrowed channel , into a variously - shaped sac , whose walls are directly continuous with its own , and which will henceforward be termed the ...
Side 123
... upper portion of this small ciliated cavity is prolonged proximally into the larger chamber of the " somatocyst . " The cœnosarc ( c ) bears polypites , each of which is protected by a delicate glassy " hydrophyllium . ” - ORDER II ...
... upper portion of this small ciliated cavity is prolonged proximally into the larger chamber of the " somatocyst . " The cœnosarc ( c ) bears polypites , each of which is protected by a delicate glassy " hydrophyllium . ” - ORDER II ...
Side 158
... upper portions of which are composed of loose fusiform spicules , and are thus capable of withdrawal into the lower dense portion of the thecæ . FAMILY III . PENNATULIDE . The Pennatulida , or " Sea- pens , " are defined by their free ...
... upper portions of which are composed of loose fusiform spicules , and are thus capable of withdrawal into the lower dense portion of the thecæ . FAMILY III . PENNATULIDE . The Pennatulida , or " Sea- pens , " are defined by their free ...
Side 174
... upper surface of the reef , along a line of greater or less breadth , is more or less completely raised above the level of high water . It is obvious , however , that the reef might be entirely destroyed by a continuation of this ...
... upper surface of the reef , along a line of greater or less breadth , is more or less completely raised above the level of high water . It is obvious , however , that the reef might be entirely destroyed by a continuation of this ...
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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