Source : Webster's Revised Unabridged Dictionary (1913)

Congeneric \Con`ge*ner"ic\, Congenerical \Con`ge*ner"ic*al\, a.
   Belonging to the same genus; allied in origin, nature, or
   action. --R. Owen.

Source : WordNet®

congenerical
     adj : belonging to the same genus [syn: {congeneric}, {congenerous}]