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Tiny Blue Octopus Identified Near Galápagos

High-resolution CT scans allowed scientists to describe the species from a single preserved specimen without dissection, preserving rare deep-sea material.

Overview

  • Researchers working with the Charles Darwin Foundation recovered a golf-ball-sized, blue octopus from about 1,800 meters depth near the Galápagos and sent photos and a preserved specimen to specialists for study.
  • A team published the formal description in Zootaxa and named the animal Microeledone galapagensis after creating a 3-D model from thousands of CT images instead of dissecting the lone specimen.
  • The octopus is notable for its thick, short arms bearing a single row of suckers and a soft dorsal skin, anatomical traits that set it apart from most known octopus species.
  • Scientists propose that the animal’s light-blue dorsal and dark-violet ventral coloring could absorb light from bioluminescent prey and reduce predation, but they say additional specimens and field observations are needed to test that idea.
  • The find highlights high, underdocumented deep-sea biodiversity and shows how non‑destructive imaging can let researchers describe rare taxa while keeping unique specimens available for future study.