Dr. Jean-Marc Gagnon compares the new species of giant file clam (left) to a regular-sized file clam (right). (Image courtesy of the Canadian Museum of Nature)

Dr. Jean-Marc Gagnon compares the new species of giant file clam (left) to a regular-sized file clam (right). (Image courtesy of the Canadian Museum of Nature)

A new species of clam, the giant file clam (Acesta cryptadelphe) was discovered off the coast of Newfoundland. The species was first spotted over 30 years ago, and thanks to DNA analysis it has been confirmed as a new species. The species is so similar to the file clam that the scientists decided to name it “cryptic sibling”. The species is between nine and 15 cm in length, and lives in the deep ocean.

Original research paper published in Zootaxa on August 31, 2015.

Names and affiliations of selected author

Jean-marc Gagnon, Canadian Museum of Nature, Ottawa, Ontario