Species #3,421 of 42,840

Acanthodiscus atramentaria

The first Acanthodiscus atramentaria ever found, swimming live. Its hidden genes stay hidden.

Acanthodiscus atramentaria lyriparva is a species of alien fish in Fish of Ganymede: a deep with a spiky dorsal fin, Abyss Ink colouring, a lyre tail and a small mouth. It lives in midnight water, 2 km to 8 km under Ganymede’s ice. It was first found by kok on 5 November 2026.

At a glance

Body planDeep
Dorsal finSpiky
ColouringAbyss Ink
TailLyre
MouthSmall
Home depthMidnight water (2 km–8 km), diving level 10
DietHerbivore
First fish’s rarityUncommon
First found5 November 2026 by kok
Players who have found it1
Swimming today1 fish

What the name means

Acanthodiscus atramentaria means roughly “inky spine-disc”: from acantho- (spine) and discus (disc), and atramentaria (inky). 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 midnight water (it opens at diving level 10) and look for a deep with Abyss Ink 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