Fluvitrygon signifer (Compagno & Roberts, 1982)
White-rimmed stingray
photo by Roberts, T.R.

Family:  Dasyatidae (Stingrays), subfamily: Urogymninae
Max. size:  60 cm WD (male/unsexed)
Environment:  benthopelagic; freshwater; brackish
Distribution:  Asia: Indonesia, Malaysia and Thailand (Chao Phraya, Mekong and Tapi Rivers).
Diagnosis:  Narrow white marginal band around disk; white spot anterior to spiracle and posterior to eye; ventral surface plain; spiral valve with 11-14 turns (Ref. 12693).
Biology:  Inhabits sandy bottoms in estuaries and rivers (Ref. 12693). Feeds on bottom-dwelling crustaceans and shellfish. Breeds in fresh water (Ref. 32457). Ovoviviparous (Ref. 50449). Wounds caused by the dorsal spines are extremely painful and can be fatal. Sold fresh for human consumption (Ref. 32457). Total length maybe greater than 200 cm.
IUCN Red List Status: Endangered (EN); Date assessed: 25 January 2021 (A2cd) Ref. (124695)
Threat to humans:  traumatogenic
Country info:   

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