sentences:  The International Union for Conservation of Nature (IUCN) has assessed it as Vulnerable; it is often taken as bycatch and may be threatened by intensifying squid fishing.The first known specimens of the southern sawtail catshark were caught in a series of experimental fish traps set off Rio Grande do Sul, Brazil, in 1988.Initially identified as "Galeus antillensis", the species was described in a 2001 issue of the scientific journal "Mare Magnum" by Jules Soto, who named it after Michael Maia Mincarone for his contributions to the Museu Oceanográfico do Vale do Itajaí.