Rainford's dartfish (Parioglossus rainfordi), first described by McCulloch, 1921 is a tiny fish in the family Microdesmidae (order Gobiiformes). Adults typically reach 4.50 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 0 to 5 metres. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. The species schools in loose to tight aggregations. On the IUCN Red List, it is classified as Least Concern.
Dorsal spines (total): 5 - 7; Dorsal soft rays (total): 14 - 17; Anal spines: 1; Anal soft rays: 14 - 16. : elongated.
Behavioural data for Rainford's dartfish is currently being reviewed.
Marine; brackish; reef-associated; depth range 0 - 5 m . Tropical; 25°N - 28°S north to Yaeyama Islands, south to Queensland, Australia; including Palau and Pohnpei (Caroline Islands) in Micronesia and New Caledonia (Ref.
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