70-Year-Old Squid Reveals Entirely New Ocean Family

A preserved squid pulled from a sperm whale's belly in 1955 just became the first new oceanic squid family discovered in 27 years.

The specimen sat labeled and forgotten in scientific collections for nearly 70 years. Researchers initially thought it was a known species called the sharp-ear enope squid, but they were wrong in the most exciting way possible.

Marine biologist Malcolm Clarke originally collected the squid from a male sperm whale during an Antarctic whaling expedition in the 1955-56 season. The whale had hunted and eaten the squid somewhere in the waters around the Drake Passage and Scotia Sea, places where researchers have never collected this species any other way.

After Clarke died in 2013, his research collection went to London's Natural History Museum and eventually to the Marine Biological Reference Collections in Barcelona. That's where scientists Sam Arnold and Fernando Ángel Fernández-Álvarez spotted something unusual while revising squid diversity.

The specimen's anatomy didn't match any recognized family of oceanic squid. It lacked expected light-producing organs, had distinctively short fins, and featured unusual hooks with a trident-like shape. The differences were so significant that the team created an entirely new family, genus, and species to classify it.

They named it Mobydickia poseidonii, honoring both the sperm whale that caught it (famous from Moby-Dick) and the Greek sea god Poseidon, whose trident matches the squid's distinctive hooks. The scientific description appeared in the Zoological Journal of the Linnean Society in July 2025.

Creating a new family is a big deal in taxonomy. It means this squid represents a completely separate structural lineage among ocean squid, not just a slight variation of something already known. The last time scientists erected a new oceanic squid family was 1998, when they described bigfin squid.

Why This Inspires

This discovery reminds us how much remains unknown in our oceans. Deep-sea squid are incredibly difficult to collect intact because nets damage their soft bodies and many species live beyond normal observation. Sperm whales, however, hunt squid across vast volumes of deep water, acting as unexpected scientific collectors.

The squid's journey from whale stomach to museum drawer to scientific breakthrough shows the power of preserving specimens. A preserved animal can outlive the assumptions attached to its label, waiting patiently for new eyes and better tools to reveal its secrets.

No one has knowingly seen Mobydickia alive, and scientists don't yet know its habitat, population size, or behavior. But establishing its existence opens the door for future discoveries and reminds us that our planet still holds fundamental surprises, even in specimens collected decades ago.

The ocean depths continue to guard their mysteries, and sometimes those mysteries arrive gift-wrapped in a whale's stomach.