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Patuxent Wildlife Research Center

Amphibian Malformation Examples

  1. Juvenile Rana catesbeiana found in September 2001 with a bony protrusion that is possibly an extra digit.
    Malformed Foot
  2. Juvenile Rana catesbeiana found in July 2001, suffering from Mandibular Agnathia, or missing lower jaw. This particular individual was one of three with a missing lower jaw and hole in the gular region.
    Malformed Mouth
  3. Adult Ambystoma maculatum found in April 2001 with a fleshy protrusion on the tail.
    Malformed Tail

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Page Last Modified:11/02/2009