The family Brotulidae, commonly known as the cusk eel family, comprises a group of fish species that are mainly found in deep waters. These fish have a slimy, elongated body and a large head, and typically grow up to 50cm in length. While the term Brotulidae is widely used to refer to this family, there are several other names that are used interchangeably. These include brotulas, cusk-eels, lowfin brotulas, and beardless brotulas. The Brotulidae family plays an important role in marine ecosystems as they are known to feed on small fish, crustaceans, and other invertebrates. They are also a popular catch for commercial and recreational fishing.