also probeagle at English => English (Websters 1913) Of Explained:
Porbeagle \Por"bea`gle\, n. (Zo["o]l.)
A species of shark ({Lamna cornubica}), about eight feet
long, having a pointed nose and a crescent-shaped tail; --
called also {mackerel shark}. [Written {also probeagle}.]