Trygonoptera mucosa

Western stingaree
Trygonoptera mucosa
Trygonoptera mucosa, Photo: Graham Edgar


Temperate Australasia


This species is often smaller, but appears practically identical to T. imitata - and is best distinguished based on location (this species only found in South Australia and Western Australia). It differs from T. testacea in lacking the small dorsal fin on the tail. Most commonly seen in shallow sheltered bays near seagrass beds.


Max Size: 37 cm

Sea Temperature Range: 11.6-22.6°C

Depth: 0-120m

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: Least Concern

Occurrence: Widespread (100% 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.