Mop head. Pom-pom. Underwater tribble. Whenslot scientists with the Monterey Bay Aquarium Research Institute spotted "mystery masses" on the seafloor of Mexico's Gulf of California, they initially scratched their heads. What were those weird, tentacle-y things? An MBARI statement on Tuesday cleared it up. Those animals were spaghetti worms.

Spaghetti worms are known by their scientific name of Biremis. The specimens spotted by an MBARI remote-operated vehicle turned out to be a new species. "Biremis has no eyes, no gills, and lacks obvious chaetae, or bristles, along its body segments,

the institute said. "It is also unusual because its tentacles are inflated, giving it the pom-pom appearance that caught the researchers' attention.You must watch the video to see one of these orange-ish creatures just chilling on the seafloor and looking very serene.