Stiletto designed the Fairbairn–Sykes fighting knife, a double-edged dagger with a long narrow point designed to optimize the blade for thrusting, though it was also capable of slashing strokes if the cutting edges were sharpened. Other variations of the F-S knife soon emerged, including the U.S. Marine Raider Stiletto, which was based upon the Fairbairn-Sykes knife, and the U.S. V-42 stiletto, designed from the outset to emphasize thrusting over cutting. During the 1950s, large numbers of folding switchblade or automatic opening knives with locking blades were imported from Italy to the United States. Most of these switchblades were side-opening designs, though
Name-bearing type Central American rodent tribe Nyctomyini has "Nyctomys" as its type genus and its name consists of the stem of the type genus, Nyctomy-, and the appropriate ending for a tribe, -ini. "Genus group" ranks consist of the genus and subgenus. The name-bearing type for a genus-group taxon is the type species, which must be one of the species included when that taxon ("genus" hereafter for brevity) was first formally named or, when no species were included when the genus was named, one of the first species that were subsequently included in it. A genus described after 1930 (1999 for ichnotaxa)