A manual of zoologyWilliam Blackwood & Sons, 1878 - Zoology |
From inside the book
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Page 15
... mouth and a distinct digestive cavity . Some animals , however , such as the tape- worm and the Gregarinæ , live entirely by the imbibition of organic fluids through the general surface of the body , and many have neither a distinct mouth ...
... mouth and a distinct digestive cavity . Some animals , however , such as the tape- worm and the Gregarinæ , live entirely by the imbibition of organic fluids through the general surface of the body , and many have neither a distinct mouth ...
Page 18
... mouth , and there is a persistent internal cavity for the reception of the food ; but this is not shut off from the general cavity of the body , and there are no distinct circulatory or respiratory organs . In a Mollusc , such as the ...
... mouth , and there is a persistent internal cavity for the reception of the food ; but this is not shut off from the general cavity of the body , and there are no distinct circulatory or respiratory organs . In a Mollusc , such as the ...
Page 89
... mouth . 22 ข 08 A A B Fig . 26 - A , Paramecium , showing the nucleus ( ) and two contractile vesicles ( v ) . B. Paramecium bursaria ( after Stein ) dividing transversely : Nucleus ; n ' Nucleolus ; Contractile vesicle . C , Paramecium ...
... mouth . 22 ข 08 A A B Fig . 26 - A , Paramecium , showing the nucleus ( ) and two contractile vesicles ( v ) . B. Paramecium bursaria ( after Stein ) dividing transversely : Nucleus ; n ' Nucleolus ; Contractile vesicle . C , Paramecium ...
Page 91
... mouth . Contact of the two reproductive elements then takes place , and the fecundated ovules after their liberation ... mouth , which conducts by its entrance or " vestibulum " into a fusiform canal or " pharynx , " which terminates ...
... mouth . Contact of the two reproductive elements then takes place , and the fecundated ovules after their liberation ... mouth , which conducts by its entrance or " vestibulum " into a fusiform canal or " pharynx , " which terminates ...
Page 99
... mouth , but the walls of the body usually enclose a permanent chamber or " body - cavity . " Fur- ther , in most cases , the mouth conducts into an alimentary canal , which is always distinct from the body - cavity , never opening into ...
... mouth , but the walls of the body usually enclose a permanent chamber or " body - cavity . " Fur- ther , in most cases , the mouth conducts into an alimentary canal , which is always distinct from the body - cavity , never opening into ...
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Other editions - View all
Manual of Zoology ...: With a General Introduction on the Principles of Zoology Henry Alleyne Nicholson No preview available - 2015 |
Common terms and phrases
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