Full Breakdown
New Deep-Sea Octopus Species Discovered Near the Galápagos
5/28/2026, 12:13:41 AM
Discovery of *Microeledone galapagensis*
In 2015, a remotely operated vehicle (ROV) used by the Charles Darwin Foundation and the Galápagos National Park Directorate filmed a tiny, bright-blue octopus on the seafloor near Darwin Island at about 5,800 ft (?1,770 m) depth. The specimen was preserved, sent to the Field Museum, and examined by octopus specialist Janet Voight, who led its description as *Microeledone galapagensis* in a 2024 *Zootaxa* paper.
Scientific Context and Family Significance
*Microeledone galapagensis* is a megaleledonid, a family normally composed of larger, Antarctic species. This tiny octopus is the smallest known member and the first recorded in tropical Pacific waters, expanding the family’s range.
Timeline of the Discovery
2015 – ROV sighting at ~5,800 ft; specimen collected.
2024 – Micro-CT scans enabled a 3-D model and formal description in *Zootaxa*.
Morphology and Habitat
The octopus is about 5 cm long, with a bright blue back and deep-purple underside, a single row of suckers per arm, and lives on the deep-sea benthic zone at ~1,770 m.
Implications for Deep-Sea Biodiversity
The find extends megaleledonid distribution into tropical waters, highlights the largely undocumented Galápagos deep sea, and demonstrates micro-CT as a non-destructive tool for rare specimens.
Institutional Responses
The Charles Darwin Foundation said the blue hue and depth reveal how much of the Galápagos deep ocean remains unexplored. The Field Museum noted that micro-CT scanning produced detailed 3-D images without damaging the type specimen. The *Zootaxa* authors called the species a new addition to the megaleledonid lineage, extending its range beyond Antarctic waters.
Gaps and Limitations
Only one specimen is known, limiting knowledge of variation and population; reported depths differ slightly (5,800 ft vs. 5,900 ft).
Verbatim Quotes
- “Right away, I knew it was something really special. I'd never seen anything like it,” — Janet Voight, lead author
- “When it arrived, I was like 'Oh! My goodness! It's beautiful,'” — Janet Voight, Field Museum
- “There's nothing like spending the day looking at something no other human has ever seen.” — Stephanie Smith, head of X-ray lab, Field Museum
- “We think this color pattern helps keep it safe. If the octopus grabs a prey item that emits light, that light may attract predators that might then eat the octopus. So the octopus puts its dark-colored web over the prey item, keeping itself safe,” — Janet Voight, octopus expert
- “When we were sorting through dozens of specimens collected during the expedition, this tiny blue octopus fascinated us,” — Salome Buglass, marine scientist, UCLA
Future Research Directions
Researchers will conduct more ROV surveys around the Galápagos, apply micro-CT and genetic analyses to additional specimens, and clarify the species’ evolutionary relationships.
