How can we recognize Urohyal and Parurohyal in fishes?

07 July 2018 0 5K Report

there is a tendon (or tendons) in the central part of mandibular skeleton of fish that bone formation of this tendon (tendons) creates two different structures Urohyal and Parurohyal. But the key question is how can we recognize this two structure in fishes? In the other word, How can understand this structure is Urohyal or Parurohyal?

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