Genus Loligo is a marine animal with ten arms, commonly known as the squid. Synonyms for Genus Loligo include the broadhead squid, the European squid, the longfin squid, and the longfin inshore squid. These synonyms refer to the different varieties of squid that belong to the same genus. Squids are highly intelligent and have been known to communicate with their surroundings. They are also a popular food source around the world. Whether you call it Genus Loligo or one of its many synonyms, these creatures are fascinating and integral parts of our oceanic ecosystem.