Comparative Hematology

  • Jessica H. Lewis


Erythrocyte size and shape vary widely. For example, there are striking differences between the small, round, nonnucleated cell of the mouse and the large, flat-oval, nucleated cells of the tailed amphibians: amphiuma (Congo eel) and necturus (mud puppy). These differences in erythrocyte size and shape could possibly be used for additional criteria to define the seven classes of Chordata (Cyclostomata, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Ayes, and Mammalia), for which it is customary to use such other characteristics as skeletal structure, skin features (hair, feathers, scales), the site of oxygen exchange, and the modes of reproduction.


Mean Corpuscular Volume Fragility Curve Plasma Osmolarity Green Turtle Osmotic Fragility 
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Suggested Readings Erythrocyte Size and Shape

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Osmotic Fragility of Vertebrate Erythrocytes

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Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • Jessica H. Lewis
    • 1
  1. 1.University of Pittsburgh School of Medicine and Central Blood BankPittsburghUSA

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