Female and subadult male. Carapace smooth, unornamented. Pseudorostrum ventrally directed. Eyelobe with 3 lenses. Pereopod 2 basis expanded. Telson subequal to uropod peduncles, lateral margins serrate, bearing 1 pair stout lateral setae and 1 pair stout terminal setae. Uropod endopod triarticulate, much longer than exopod. Terminal setae of uropod rami simple. Adult male. As in female, except exopods present on maxilliped 3?pereopod 2. Telson longer than uropod peduncles. Uropod endopod biarticulate, much longer than exopod.
Litogynodiastylis ambigua was described based on specimens that could be divided into three different forms, varying in size, robustness, and carapace dimensions, hence the name "ambigua". The size and robustness of the various forms could be attributed to environmental variations, therefore the three variants are considered a single species.
Among macroalgae in sandy sediments, to depth of 400 m.
Southern temperate oceans, including south-eastern Australia.
Native to Australia
- DSE Advisory List : Not listed
- EPBC Act 1999 : Not listed
- IUCN Red List : Not listed