It is closely related to the butterfly skate, Bathyraja papilionifera, based on similarity of mtDNA fragments from Cytochrome c oxidase subunit I.
Protein subunit | subunit | cytochrome b | cytochrome ''b'' | NADPH oxidase | oxidase | Cytochrome c oxidase | cytochrome c oxidase | Oxidase | Monoamine oxidase | cytochrome ''c'' oxidase | monoamine oxidase | Gi alpha subunit | ATP synthase subunit C | Succinate dehydrogenase complex subunit C | Reticuline oxidase | Monoamine oxidase B | L-gulonolactone oxidase | Interleukin 12 receptor, beta 2 subunit | D-amino acid oxidase | Cytochrome P450, family 1, member A1 | Cytochrome P450 | cytochrome P450 | Cytochrome c oxidase subunit I | COP9 constitutive photomorphogenic homolog subunit 5 | ATP-dependent Clp protease proteolytic subunit |