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Golf-Ball-Sized Blue Octopus Identified as New Species Near Galápagos

Non-destructive micro-CT imaging let scientists describe the animal from a single 2015 specimen, highlighting how little is known about deep Galápagos seafloor life.

Overview

  • Researchers formally named Microeledone galapagensis in a Zootaxa paper published in May 2026 after examining a preserved specimen collected in 2015 near Darwin Island.
  • The specimen was recovered by an ROV at about 1,773 meters depth and ROV video also recorded at least two visually similar individuals on the same seamount.
  • Because only one specimen was available, the Field Museum team used high-resolution micro-computed tomography to image internal anatomy without dissecting the animal.
  • The octopus is roughly the size of a golf ball, light blue on top and deep purple underneath, with short arms bearing a single row of suckers, traits that helped distinguish it from known species.
  • Authors report affinities with the largely Antarctic Megaleledonidae family and stress that the find, enabled by legal collaboration between Galápagos authorities and museums, underscores gaps in deep-sea knowledge with implications for research and conservation.