He is a demon i think   See 1 other reply

http://jisho.org/words?jap=水虫&eng=&dict=edict
this dictionary says it can mean athlete's foot but also some kind of "aquatic sowbug" so maybe the translation was a little liberal so the audience could have something more identifiable   See 7 other replies

In Japanese "mushi" (bug) has a really broad use, ranging from insects all the way down to bacteria and germs. Athlete's Foot tends to grow when people have damp/sweaty feet, so I'm guessing that's where the term comes from. It's mentioned when they are holding up the sign for the hot spring and all the curative effects it has. It's been about a month since I watched the episode, so I'm not sure about the timestamp.   See 7 other replies

it seems to directly translate to water bug/primitive life form, when did they say this?   See 7 other replies

They definitely do make the distinction, and in any Japanese-English dictionary I've seen "mizumushi" is translated as athlete's foot and "tamushi" is translated as ringworm. All of the athlete's foot medicines I've seen in Japanese drugstores have been to treat "mizumushi" and not "tamushi". Even though they are caused by the same bacteria, they are different ailments. I can't imagine that the translators would look up the latin name of the bacteria, then go through a medical dictionary to pick an ailment that bacteria causes.Another interesting possibility is that they intentionally mis-translate some bits for copyright purposes. Sometimes translators change some names or words so that if they ever have to take someone to court over copyright infringement they can point to the specific differences between the translation and the original as evidence someone stole their translation as opposed to having independently created a very similar translation. I don't agree with that practice, as it sort of defeats the point of making a "good" (accurate) translation, but it is a possibility.   See 7 other replies