Board Thread:Questions and Answers/@comment-27230628-20171019185949/@comment-5986522-20171024185452

@Mymimicat: The official translations will naturally adapt what the Japanese content uses, and as Jin falsely uses Medusa as term, they would use it as well. It's a chain reaction if a creator is misinformed about terms before making use of them in their stories.

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If going exclusively about the species, the three sisters don't have a relevance (It's the same concept as for, as example, Pegasus - while there is a famous example in mythology, the species of a winged horse is generally referred to as a pegasus, not necessarily linking back to the origin character). Species names are, by default rule of grammar, not capitalized, so i f going solely by grammar rules I would capitalize neither in the end.

Going by wiki and fiction culture, however, it is common to capitalize the names of species that are key elements in a series, which is why I have that personal preference.