2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/66442In Shephard-Todd classification of finite (complex) reflection groups, the group $G_{31}$ appears to be the unique one in rank 4 of order 46080. We provide here an elementary construction starting from the Weyl group of type $B_6$.9 pagesGroup Theory20F55text