Pristidae
plural noun
Pris·ti·dae
ˈpristəˌdē
: a small family of cartilaginous fishes closely related to the skates and rays but having the body elongated rather than flattened and distinguished by a snout elongated into a flat blade with teeth along each side and comprising the economically important sawfishes of warm seas and estuaries some of which are reputed to exceed 20 feet in length
Word History
Etymology
New Latin, from Pristis, type genus + -idae