A manual of zoologyWilliam Blackwood & Sons, 1878 |
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Resultados 1-5 de 90
Página 25
... pair , or from pairs exactly simi- lar to one another . The characters in which individuals must resemble one another in order to entitle them to be grouped in a separate species , according to Agassiz , " are only those determining ...
... pair , or from pairs exactly simi- lar to one another . The characters in which individuals must resemble one another in order to entitle them to be grouped in a separate species , according to Agassiz , " are only those determining ...
Página 27
... pair , or from pairs exactly similar to one another , is at best but a probability , and is in no case capable of proof . In the case of the higher animals , it can doubtless be shown that certain assemblages of individuals possess ...
... pair , or from pairs exactly similar to one another , is at best but a probability , and is in no case capable of proof . In the case of the higher animals , it can doubtless be shown that certain assemblages of individuals possess ...
Página 147
... pairs , the chamber between each pair opening above into the cavity of a tentacle . As the stomach is considerably shorter than the column , it follows that the inner edges of the primary mesenteries below the stomach are free ; and ...
... pairs , the chamber between each pair opening above into the cavity of a tentacle . As the stomach is considerably shorter than the column , it follows that the inner edges of the primary mesenteries below the stomach are free ; and ...
Página 155
... pairs of branches , each resulting from the division of a single corallite . In the second case the coral becomes lamellar . " Here the secondary corallites are united throughout their whole height , and disposed in a linear series ...
... pairs of branches , each resulting from the division of a single corallite . In the second case the coral becomes lamellar . " Here the secondary corallites are united throughout their whole height , and disposed in a linear series ...
Página 156
... pairs . Their tentacles , too , are pinnate , and are not simply rounded . Numerically , the Alcyonaria agree with the extinct order Rugosa ; but the latter invariably possess a well - developed sclerodermic corallum , the thecæ of ...
... pairs . Their tentacles , too , are pinnate , and are not simply rounded . Numerically , the Alcyonaria agree with the extinct order Rugosa ; but the latter invariably possess a well - developed sclerodermic corallum , the thecæ of ...
Índice
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141 | |
156 | |
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180 | |
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Outras edições - Ver tudo
Manual of Zoology ...: With a General Introduction on the Principles of Zoology Henry Alleyne Nicholson Pré-visualização indisponível - 2015 |
Palavras e frases frequentes
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