👉 The term "clupeidae" refers to a group of marine invertebrates that belong to a class called the clupeiforms. These invertebrates are characterized by their elongated, streamlined bodies and simple arms or tentacles, which they use for movement and feeding. Some examples of clupeidae include the common clupea (including the fish known as "clupea vulgaris"), the herring clupea, the puffer clupea, the c