The story
By surface analysis, keel + jawed + needlefish, from a small bony appendage to the lower jaw in some specimens of some species of genus Tylosurus.
Etymology from Wiktionary, CC BY-SA 4.0.
keel-jawed needlefish
Today it means: A large, yet long and thin needlefish of the species of genus Tylosurus, common gamefishes in the Atlantic and Indo-Pacific oceans. Full definition →