Species #2,186 of 42,840

Stephanoichthys ferruginea

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

Stephanoichthys ferruginea flabellilata is a species of alien fish in Fish of Ganymede: a torpedo with a crown dorsal fin, Rust Vent colouring, a fan tail and a wide mouth. It lives in under the ice, 0 m to 300 m under Ganymede’s ice. It was first found by kok on 5 November 2026.

At a glance

Body planTorpedo
Dorsal finCrown
ColouringRust Vent
TailFan
MouthWide
Home depthUnder the ice (0 m–300 m), diving level 1
DietOmnivore
First fish’s rarityEpic
First found5 November 2026 by kok
Players who have found it1
Swimming today1 fish

What the name means

Stephanoichthys ferruginea means roughly “rust-coloured crown-fish”: from stephano- (crown) and ichthys (fish), 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 a torpedo 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