Species #511 of 42,840

Histioichthys ferruginea

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

Histioichthys ferruginea furciparva is a species of alien fish in Fish of Ganymede: a torpedo with a sail 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 reefer on 2 November 2026.

At a glance

Body planTorpedo
Dorsal finSail
ColouringRust Vent
TailFork
MouthSmall
Home depthUnder the ice (0 m–300 m), diving level 1
DietHerbivore
First fish’s rarityCommon
First found2 November 2026 by reefer
Players who have found it2
Swimming today2 fish

What the name means

Histioichthys ferruginea means roughly “rust-coloured sail-fish”: from histio- (sail) 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