Rhynchocinetes australis
Southern hinge-back shrimp
Distribution
Temperate Australasia
Description
Close relative of R. rugulosus found in southern waters. It differs structurally from R. rugulosus in lacking a gill at the base of the third walking leg (present on the first two), but is more easily recognised because it has stripes rather than bands on the upper segments of the legs. Southern hinge-back shrimps nevertheless exhibit a range of different colour patterns, and it is therefore possible that several species are involved.
Information
Max Size: 6 cm
Sea Temperature Range: N/A
Depth: 4-245m
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: Infrequent (1.8% 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: Large aggregations (501 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