Muritaia longispinata is a species of Amaurobiidae spider that is endemic to New Zealand.Forster, R. R. & Wilton, C. L. (1973). The spiders of New Zealand. Part IV. Otago Museum Bulletin 4: 1-309

Taxonomy This species was described in 1973 by Ray Forster and Cecil Wilton from a female specimen. The holotype is stored in Auckland War Memorial Museum under registration number AMNZ5061.

Description The female is recorded at 2.80mm in length.

Distribution This species is only known from Bay of Plenty, New Zealand.

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

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