Deania cf. profundorum

The two Deania samples collected in Taiwan were initially identified as D. cf. quadrispinosa . They formed a single cluster that included a sample from off Japan (GN7456) labeled as D. profundorum and a sample from off New South Wales, Australia (GN2543) identified as D. quadrispinosum 2 (Supplementary Material 1, Figure 1). This cluster grouped closest to, but distinct from, a D. quadrispinosum 1 sample (GN2619) from New South Wales, Australia. A taxonomic revision of this group is currently underway. This species is provisionally identified as D. cf. profundorum, but is distinct from the D. cf. profundorum sample from Portugal (Figure 1), which is certainly a distinct species.