Medium-sized ray with a dark brown to grey upper surface. A similar stingaree in shallow NSW waters, the common stingaree Trygonoptera testacea, differs in possessing a very small dorsal fin in front of the tail spines, although in some individuals this is difficult to see as it may only be the size of a skin fold. See entry for T testacea for photos showing the skin flap.

T. mucosa is almost identical, but tends to be smaller and only occurs in South Australia and Western Australia.

• Max Size: 69 cm
• Sea Temperature Range: 13.7-22.9°C
• Depth: 0-120m
• Habitat: Soft sediment

• IUCN Threat Status: Near Threatened
• Occurrence: Infrequent (9% 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.