Mariana Snailfish

Mariana Snailfish icon

Mariana Snailfish

Fish
Mariana Snailfish
Mariana Snailfish

A soft, pale fish that thrives in the crushing dark of the deepest trench in the sea.

💡 Fun Facts

  • It lives deeper than any other fish we know of — nearly 8 kilometres down in the Mariana Trench — though some tiny shrimp-like animals are found even deeper.
  • The pressure down there could crush a submarine, yet its soft, jelly-like body and a special protein-protecting chemical let it thrive.
  • In permanent darkness its eyes barely work, so it hunts the little amphipods swarming the trench floor by sensing movement and smell.
Name Story

Pseudoliparis swirei

means “The 'false sleek-fish', named in honour of Herbert Swire of HMS Challenger.”

What does its name mean?
  • Pseudo- — falseGreek pseudēsDecode this word →
  • -liparis — sleek/oily (a related snailfish genus)Greek liparos 'sleek, oily'
  • swirei — of Swire — Herbert Swire, navigating sub-lieutenant on HMS Challenger, whose 1872–76 voyage found the Challenger Deephonorific (personal name)

Pseudoliparis means roughly 'false sleek-fish', borrowing from a related group of snailfish, and swirei honours Herbert Swire, a young officer on HMS Challenger whose 1870s voyage first found the deepest part of the ocean.