Source : Webster's Revised Unabridged Dictionary (1913)

Longiroster \Lon`gi*ros"ter\, n.; pl. L. {Longirostres}, E.
   {Longirosters}. [L. longus long + rostrum beak: cf. F.
   longirostre.] (Zo["o]l.)
   One of the Longirostres.