Mustelus griseus Pietschmann, 1908

Type locality: Japan.

The three M. griseus samples included in this analysis formed a single cluster amongst a polytomy of other closely-related Mustelus species (Supplementary Material 1). As discussed in Naylor et al (2012b), the genus Mustelus may be paraphyletic and the current results further support this hypothesis (Supplementary Material 1).