A swordfish's scientific name is Xiphias gladius.
YES
Quail, Xiphias gladius (Swordfish), Yak, Zebra.
The taxonomic name of the Swordfish is "Xiphias gladius".
Anguilla anguilla
If you are asking about the marine Swordfish they are "Xiphias gladius" if you are asking about the tropical livebearing Swordtail, then the species is "Xiphophorus helleri".
Exocoetidae
xiphias
If you are refering to the marine swordfish (Xiphias gladius) they mature at around 4 or 5 years old and could probably live for over 20 years in the wild.
Xiphias is an uncountable noun and has no plural.
Jaime R. Alvarado Bremer has written: 'Assessment of morphological and genetic variation of the swordfish (Xiphias gladius Linnaeus): evolutionary implications of allometric growth and of the patterns of nucleotide substitution in the mitochondrial genome'
crab = brachyura lobster = ulang red snapper = Lutjanus campechanus shark = pating swordfish = Xiphias gladius tilapia = tilapya trout = trutsa tuna = tulingan