Overview: This volume had its origin in a symposium on the.Reproduction and. .Development of Cartilaginous Fishes. thatwas held at the annual meetings of the American Elasmobranch Societyand the American Society of Ichthyologists and Herpetologists inCharleston, South Carolina in 1990. The cartilaginous fishes, classChondrichthyes, are a large and diverse group of fishes that includeapproximately 900 to 1100 living species of sharks, skates, rays andratfishes. Throughout their history, which dates back at least 400million years, they have been a successful major component of themarine ecosyste
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