👉 The term "Rostrocalanidae" refers to a group of marine invertebrates, specifically belonging to the family Rostrocalanidae. These animals are characterized by their distinctive rostrum, which is shaped like a long and narrow bar that extends from the head to the tail. This structure serves as a primary feeding organ for the species, allowing them to reach food sources such as small fish, crustaceans, or even larger marine animals. The group includes
