A manual of zoologyWilliam Blackwood & Sons, 1878 - Zoology |
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Page 186
... beak of a bird . Their action appears to be independent of the will of the animal , and their true function is not known ; but they may be regarded as peculiarly modified spines . One function performed by the pedicellariæ , in some ...
... beak of a bird . Their action appears to be independent of the will of the animal , and their true function is not known ; but they may be regarded as peculiarly modified spines . One function performed by the pedicellariæ , in some ...
Page 268
... beak , result- ing from the elongation of the labrum and labium . Within this are two stylets or lancet - shaped mandibles , used in piercing . The feet are often deformed by age , or wanting , but are primitively natatory . Not only ...
... beak , result- ing from the elongation of the labrum and labium . Within this are two stylets or lancet - shaped mandibles , used in piercing . The feet are often deformed by age , or wanting , but are primitively natatory . Not only ...
Page 280
... beaks dorsally , and marked with concentric lines of growth . The species live in fresh or brackish water . In Nebalia , the only marine type of the order , the carapace is furnished with a beak or " rostrum. Fig . 131. - Phyllopoda ...
... beaks dorsally , and marked with concentric lines of growth . The species live in fresh or brackish water . In Nebalia , the only marine type of the order , the carapace is furnished with a beak or " rostrum. Fig . 131. - Phyllopoda ...
Page 281
Henry Alleyne Nicholson. the carapace is furnished with a beak or " rostrum , " and the eyes are pedunculated . Good authorities doubt if it be properly referable to this order . D C E G B Fig . 132 - Morphology of Phyllopoda . A ...
Henry Alleyne Nicholson. the carapace is furnished with a beak or " rostrum , " and the eyes are pedunculated . Good authorities doubt if it be properly referable to this order . D C E G B Fig . 132 - Morphology of Phyllopoda . A ...
Page 305
... beak , or " rostrum , " which enables them to pierce the skin , and retain their hold firmly . In the Hydrachnide ( fig . 147 , c ) , or Water - mites , the head is furnished with two or four ocelli , and there are four pairs of hairy ...
... beak , or " rostrum , " which enables them to pierce the skin , and retain their hold firmly . In the Hydrachnide ( fig . 147 , c ) , or Water - mites , the head is furnished with two or four ocelli , and there are four pairs of hairy ...
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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