Species #33,182 of 42,840
Histiochaetodon glacialis
Histiochaetodon glacialis flabellilata is a species of alien fish in Fish of Ganymede: a butterfly with a sail dorsal fin, Ice Shelf colouring, a fan tail and a wide mouth. It lives in twilight drift, 300 m to 2 km under Ganymede’s ice. It was first found by Frost Wanderer 278 on 4 November 2026.
At a glance
| Body plan | Butterfly |
|---|---|
| Dorsal fin | Sail |
| Colouring | Ice Shelf |
| Tail | Fan |
| Mouth | Wide |
| Home depth | Twilight drift (300 m–2 km), diving level 4 |
| Diet | Omnivore |
| First fish’s rarity | Uncommon |
| First found | 4 November 2026 by Frost Wanderer 278 |
| Players who have found it | 1 |
| Swimming today | 1 fish |
What the name means
Histiochaetodon glacialis means roughly “icy sail-bristle-tooth”: from histio- (sail) and chaetodon (bristle-tooth), and glacialis (icy). Every species name is built from its genes: the dorsal fin and body plan give the genus, the colouring gives the species name, and the tail and mouth the last word.
How to find one
Dive to twilight drift (it opens at diving level 4) and look for a butterfly with Ice Shelf colouring, or breed for it: you need all five of its traits to show at once, and some of them may be recessive, hidden in a parent’s second gene copy. The breeding screen shows the exact odds. See how fish genetics work.