Known from Gulf of Thailand at Laem Sing, Maenam Chao Phaya (Chao Phraya), Song-khla, and Pak-phun (Pak Phayun) (Ref. 1632); also from Prachuap Khiri Khan, Chon Buri, Rayong and Andaman Sea (Ref. 37773). Occurrence in the Canthaburi Estuary (Ref. 1632) needs to be confirmed. Also Ref. 188.