Species #21,485 of 42,840

Diploostracion atramentaria

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

Diploostracion atramentaria lyridentata is a species of alien fish in Fish of Ganymede: a boxfish with a double dorsal fin, Abyss Ink colouring, a lyre tail and a fanged mouth. It lives in midnight water, 2 km to 8 km under Ganymede’s ice. It was first found by kok on 7 November 2026.

At a glance

Body planBoxfish
Dorsal finDouble
ColouringAbyss Ink
TailLyre
MouthFanged
Home depthMidnight water (2 km–8 km), diving level 10
DietOmnivore
First fish’s rarityUncommon
First found7 November 2026 by kok
Players who have found it1
Swimming today1 fish

What the name means

Diploostracion atramentaria means roughly “inky double-little box”: from diplo- (double) and ostracion (little box), 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 boxfish 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