What is "footballfish"

n. Any of the species of deep-sea anglerfishes in the ''(taxlink Himantolophidae family noshow=1)'' family.

The footballfish form a family, Himantolophidae, of globose, deep-sea anglerfishes found in tropical and subtropical waters of the Atlantic, Indian, and Pacific Ocean. The family contains c. 19 species all in a single genus, Himantolophus (from the Greek imantos, "thong, strap", and lophos, "crest").