 As there do not appear to be any existing type specimens referable to Gilchrist's account, in 2006 Brett Human designated a long male caught in Hondeklip Bay as the species neotype.Historically, there has been much confusion in the scientific literature between "H. regani", "H. punctatus", and "H. melanostigma", the last of which at various times had been considered a junior synonym of "H. regani" and was itself confounded with "H. grennian".Furthermore, two forms of "H. regani" were once recognized