Subantarctia muka is a species of Orsolobidae.

[1] This species was described in 1985 by Ray Forster and Norman Platnick from a female specimen collected in Northland.

[1] The holotype is stored in the New Zealand Arthropod Collection under registration number NZAC03015002.

[1] Under the New Zealand Threat Classification System, this species is listed as "Data Deficient" with the qualifiers "Data Poor: Size", "Data Poor: Trend" and "One Location".

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