serlaxi fu'ivla

x1 is a shark of type/species x2

See finpe, serlaximorfa, kartilagyfi'e, kardyserlaxi, rauxsa.

In notes:

kartilagyfi'e
x1 is a cartilaginous fish of species/breed x2
rauxsa
x1 is a ray/skate (fish of super-order Batoidea) of species/breed x2
sfirnidai
x1 is a hammerhead shark (member of taxon Sphyrnidae) of subtaxon/clade/breed x2.