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Journal

81 species catalogued across six chapters — 73 of them swimming in water you can dive today. Every rarity, habitat and field note below is read from the same content rows the game itself ships with; nothing here is invented. Full mechanics — sighting, capture, chapter bonuses — live in The Ledger.

Reef Naturalist

16 species

Twilight Naturalist

18 species
Gloomvein Jelly
Twilight Zone
Twilight

bell pulses every 4.5 seconds

Pale Drifter
Twilight Zone
Twilight

never once turned toward the lamp

Wickerlight Angler
Twilight Zone
Twilight

dims from the outside in

Shivering Cutlass Eel
Twilight Zone
Twilight

trembles until it decides you're safe

Understory Lanternfish
Twilight Zone
Twilight

never rises into the brighter water above

Cellar Mantle Squid
Twilight Zone
Twilight

wedges itself into the deepest crevice it can find

Quarter-Moon Jelly
Twilight Zone
Twilight

keeps a schedule none of us have cracked

Farwater Banner Ray
Twilight Zone
Abyssal

only ever passing through, never staying

Curtain Goby
Twilight Zone
Twilight

it nests where the grass grows thick

Not yet in the water
Glasspane Jelly
Twilight Zone
Twilight

looks like a flaw in the water until it moves

Farshelf Angler
Twilight Zone
Twilight

keeps to the exact line where the last light gives out

Driftmark Eel
Twilight Zone
Twilight

matches the driftwood's tumble until it doesn't

Hushfin
Twilight Zone
Twilight

locks every fin still the instant a motor's pitch changes

Paperbell Squid
Twilight Zone
Twilight

mantle creases like a folded page when it turns

Shelfclinger Crab
Twilight Zone
Twilight

never lets go of the ledge with more than one claw at a time

Middrift Ray
Twilight Zone
Twilight

holds the same depth to the foot no matter what's below it

Glassbone Fish
Twilight Zone
Twilight

only the spine shows until the light finds the rest

Duskhollow Jelly
Twilight Zone
Twilight

carries a pocket of darker water inside its own bell

Notes from the Kelp Forest

8 species

Midnight Naturalist

20 species
Duskmaw Angler
Midnight Zone
Midnight

lure warm-amber — never blue

Cinder-Thread Eel
Midnight Zone
Midnight

stitches the silt in even, patient rows

Deep Shale Crab
Midnight Zone
Midnight

half the rock down here might be crab

Vent-Huddle Isopod
Midnight Zone
Midnight

always found piled against the warm side

Chimney Veil Fish
Midnight Zone
Midnight

fins stained rust by the vent it feeds on

Black-Current Eel
Midnight Zone
Midnight

outpaces the lamp in the deepest black

Floor-Glide Ray
Midnight Zone
Midnight

flattens until it is only more silt

Still-Water Squid
Midnight Zone
Midnight

measures you by your speed, not your distance

Last-Light Angler
Midnight Zone
Abyssal

the lure goes dark before you ever see the face

Crustling Eel
Midnight Zone
Midnight

it bores into the coral crust and waits out the dark

Not yet in the water
Trench Lamp Angler
Midnight Zone
Midnight

the light goes out right before it matters

Far Wall Eel
Midnight Zone
Midnight

won't leave the wall — get between and it turns

Basalt Shell Crab
Midnight Zone
Midnight

picks its own armor, one shard at a time

Glasshoal Drifter
Midnight Zone
Midnight

one fish never turns before the whole shoal does

Voidmantle Squid
Midnight Zone
Midnight

was talking to something, in a light no one else was meant to see

Silt Hover Ray
Midnight Zone
Midnight

wears its own dust cloud like a coat

Sinkpit Angler
Midnight Zone
Midnight

the pit is not empty, the lure is just off the leash

Shelf-Belly Eel
Midnight Zone
Midnight

the crack in the ledge was never a crack

Coldcurrent Anchor Crab
Midnight Zone
Midnight

current sweeps everything past it, it never lets go

Edgelight Grouper
Midnight Zone
Midnight

always exactly as far as the light reaches, never closer

Notes from the Lower Dark

15 species
Trench Wire Eel
The Lower Dark
Abyssal

logged as a hazard before anyone called it alive

Hadal Bell Squid
The Lower Dark
Abyssal

known only from two sonar passes, years apart

Pressure-Shelf Isopod
The Lower Dark
Abyssal

the old notes say not to approach the ledge

Last-Fathom Ray
The Lower Dark
Abyssal

every sighting agrees it was heading down

Unlit Drift Jelly
The Lower Dark
Abyssal

the only jelly on record that carries no light

Downslope Angler
The Lower Dark
Midnight

same lure pattern the drone logged three hundred meters up, still descending

Silt Skimmer
The Lower Dark
Midnight

the silt scar it leaves has been seen at both survey depths this month

Overhang Crab
The Lower Dark
Midnight

found under the same kind of ledge, one band further down than usual

Undertow Squid
The Lower Dark
Midnight

rides the same current line the Midnight Zone charts already have marked

Loose Thread Eel
The Lower Dark
Midnight

the same body seen higher up, just further down the wall than logged before

Glasswake Jelly
The Lower Dark
Abyssal

the bell folds itself into the wake before the lamp can settle

Cinderflash Darter
The Lower Dark
Abyssal

one cold blue flash, then only the silt remembers it

Sable Kite Ray
The Lower Dark
Abyssal

turns on one wingtip and vanishes below the beam

Needletail Eel
The Lower Dark
Abyssal

it finds a crack in the rock before the drone finishes turning

Embercrown Crab
The Lower Dark
Abyssal

the crown dims the instant it knows it has been seen

The Sealed Grotto

4 species

The water itself

Every species above lives in one of six charted zones. See the zones for depth ranges, water conditions and what else shares that water.