Forums SEASHELL-COLLECTOR

Hi I have sent these two tonidos the Philippine area and tell me they are two different I do not quite see clearly someone help me,,,, thanks

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Can't name these with certainty, but they do appear to be different species in spite of the similar coloration. The upper one has only broad spiral cords, Like Tonna canaliculata or Tonna perdix have.  The lower one has alternating wide and narrow cords like Tonna zonata or Tonna chinensis.  Your shells do not closely resemble any of these species however.