Alpheus astrinx

Candy-stripe pistol prawn
Alpheus astrinx
Alpheus astrinx


Temperate Australasia


Bright longitudinally striped body with elongate nippers that are almost straight along the upper margin. It is a moderately common pistol shrimp under rocks in southern Tasmania, but extremely rare on the mainland. These two populations may comprise different species, as there appear to be slight differences in the shape of the claws.


Max Size: 4 cm

Sea Temperature Range: N/A

Depth: 3-12m

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: Widespread (50% 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: Solitary (1 per transect)

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

Edit by: GJ Edgar. 2008. Australian Marine Life. New Holland, Sydney