In the English translations of the Moomin books that I have read her name is always "Snorkmaiden". Wikipedia suggests that in Finnish she is "Niiskuneiti" and
allo-allo
jetsons
detectorists
bosch
in-darkness
total-recall-2012
collateral
cj7
a-view-to-a-kill
in-bruges
banged-up-abroad
rose-red
detective-pikachu
volcano
videodrome
charmed
the-boys
scent-of-a-woman
riddick
panel-shows
shaun-the-sheep
the-hunger-games-mockingjay-2
skam
batman-the-animated-series
seinfeld
young-adult
projection
cold-case
it-comes-at-night
far-and-away