Valenciennea helsdingenii

Blacklined Glidergoby | Black-lined Sleeper Goby | Railway Glider | Twostripe Goby
Valenciennea helsdingenii
Valenciennea helsdingenii, adult, Jervis Bay, NSW, Photo: Andrew Green
Valenciennea helsdingenii
Valenciennea helsdingenii, adult, Bali, Indonesia, Photo: Ian Shaw
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Valenciennea helsdingenii
Valenciennea helsdingenii


Temperate Australasia, Tropical Indo-Pacific


Two distinct black/reddish stripes from tip of snout down onto extended filaments on upper and lower tail lobes. Large black patch on rear of 1st dorsal fin. Lives in a burrow in sand near reefs, glides low down over the sand. Feeds by filtering small marine animals from mouthfuls of sand.


Max Size: 25 cm

Sea Temperature Range: 15.4-31.3°C

Depth: 1-45 m

Habitat Generalization Index: N/A

Also referred to as the SGI (Species Generalisation Index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here.

Conservation and Rarity

IUCN Status: Not Evaluated

Occurrence: Rare (1.0% of sites)

Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed

Abundance: Few (2 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.

Edit by: RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland