Hmm....that's unfortunate....

There were some pretty significant errors in the translations of this episode...at least in my opinion.

Duval refers to Hatchi as a merman, and Pappagg says that only mermaids are the fastest in the water. This is quite wrong because Hatchi isn't a merman, he's a fishman, and its not "mermaids" that are fastest, its "merfolk." There's supposed to be a disassociation between fishmen and merfolk...that being that fishmen are humanoid fish and merfolk are human from the torso up and fish below that.