Has any genetic research been done on argonauts and nautili? I doubt that the fund is there for it, but it certainly would settle this. Confusion between species and subspzcies is a problem throughout malacology, i tend to lean on a more conservative number of species, but rather more subspecies.
We are a participant in the Amazon Services LLC Associates Program, an affiliate program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.