A search of social media posts yielded 11 new landing range records for the poorly known and critically endangered Clown Wedge sh, Rhynchobatus cooki, comprised of four additional records from Dabo, Singkep, Riau Islands Regency, and six records extending the identi ed geographic range for the species to islands of the Meranti and Bengkalis Regencies in the Riau Province of Sumatra, Indonesia.