Declare your (Skeleton Type) a completed Fish

From Fallen London Wiki

Wiki note: The title of this option varies with the skeleton's Implausibility and Menace qualities:
Declare your

Skeleton: Self-Evident ImplausibilityText
0Authentic
1Almost Believable
2Mildly Questionable
3Questionable
4Very Questionable
5Somewhat Incredible
6Incredible
7Beyond Incredible
8Laughable
9Plainly Fake
10-14Brazenly Fake
15-20Flamboyantly Fake
20+Fantastic
Skeleton: MenaceText
0Creature
1Animal
2Beast
3Monster
4Monstrosity
5Demon
6+Abomination

a completed Fish

A player-created Guide is available for this content: Assembling a Skeleton (Guide)

How are the above links here?

Skeleton.png
Spoiler warning!
This page contains details about Fallen London Actions.

From: Assemble a Skeleton


It has the fins.

Unlocked with Skeleton in Progress 10-90, Skeleton: Skulls exactly 1, 2 x Skeleton: Fins, Skeleton: Tails 0-1, Skeleton: Torso Style 20 (non-Human), Unexpurgated Accounting of the Anatomies of Aquatic Life-forms

Locked with Skeleton: Skulls Needed, Skeleton: Limbs Needed, Skeleton: Tails Needed, Skeleton: Arms, Skeleton: Legs, Skeleton: Wings


Success

It looks aquatic

You label it [Description] in neat writing.

Description summary:
The exact skeleton type depends on how much Skeleton: Antiquity was used.

Antiquity Skeleton in ProgressDescription
None190 Lamprey
1-4191 Coelacanth
5192 Agnatha

[Find the rest of the story at https://www.fallenlondon.com]

If Zoological Mania: is Fish: