Amblygobius nocturnus

Pyjama Goby | False Sleeper Goby | Nocturn Goby | Nocturna Goby
Amblygobius nocturnus
Amblygobius nocturnus, Lord Howe Island, NSW, Australia, Photo: Ian Shaw
Amblygobius nocturnus
Amblygobius nocturnus, Lord Howe Is, NSW, Australia, Photo: Andrew Green
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Amblygobius nocturnus
Amblygobius nocturnus


Temperate Australasia, Tropical Indo-Pacific


Pale body with narrow red stripes on head fading along body. Similar A. decussatus (Crosshatch Goby) has prominent white tail spot with orange centre, and faint vertical bars on body. Hovers close to the bottom over sand and rubble areas near reefs. Darts into nearby holes when approached.


Max Size: 10 cm

Sea Temperature Range: 18.9-30.6°C

Depth: 1-30m

Habitat Generalization Index: 2.7

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: Frequent (10.1% 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: Several (5 per transect)

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

Edit by: Joe Shields