Species #11,011 of 42,840

Acanthoglossa ferruginea

The first Acanthoglossa ferruginea ever found, swimming live. Its hidden genes stay hidden.

Acanthoglossa ferruginea furciparva is a species of alien fish in Fish of Ganymede: an arowana with a spiky dorsal fin, Rust Vent colouring, a fork tail and a small mouth. It lives in under the ice, 0 m to 300 m under Ganymede’s ice. It was first found by Ganymede Traders on 6 November 2026.

At a glance

Body planArowana
Dorsal finSpiky
ColouringRust Vent
TailFork
MouthSmall
Home depthUnder the ice (0 m–300 m), diving level 1
DietHerbivore
First fish’s rarityEpic
First found6 November 2026 by Ganymede Traders
Players who have found it2
Swimming today1 fish

What the name means

Acanthoglossa ferruginea means roughly “rust-coloured spine-tongue”: from acantho- (spine) and glossa (tongue), and ferruginea (rust-coloured). 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 under the ice (it opens at diving level 1) and look for an arowana with Rust Vent 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.

All species found so far