Conservation Actions

There are no conservation actions in place for this species. Research into the population and distribution is recommended because this species is poorly known, as it was difficult to catch even when the habitat was in good condition (G.R. Allen pers. comm. 2019).

Location Information

This species is known only from tributary streams flowing into Lake Ayamaru in the central Bird’s Head Peninsula of West Papua Province, Indonesia. Aside from the holotype collected in 1982, the species was known only from 15 other specimens deposited at the Western Australian Museum collected in 1999 (G.R. Allen pers. comm. 2019). After extensive searches, a few individuals were also found at a single site in 2019 (P. Unmack pers. comm. 2019). It was erroneously reported from the Timika region of southern Papua Province, Indonesia by Ivantsoff et al. (1997) based on specimens of Pseudomugil ivantsoffi (G.R. Allen pers. comm. 2019).

Geographic Range



Population Information

There is no information on the population size or trend.


The habitat of this species is subject to broad fluctuations in water levels. It is thought that these fluctuations became more severe in the 1990s, and are probably exacerbated by climate change. The primary threats are predation by birds and invasive species (including snakehead, tilapia, carp and goldfish).

IUCN Red List Account Link

Please click here to see the species' IUCN Red List Account page.