A NEW RECORD OF THE LONG MORAY, GYMNOTHORAX LONGINQUUS (ACTINOPTERYGII: ANGUILLIFORMES: MURAENIDAE), FROM SOUTHERN VIETNAM, SUPPORTING THE UNCERTAIN RECORD IN THE GULF OF THAILAND

Five specimens of Gymnothorax longinquus (Whitley, 1948) were collected from a fish market and a fish landing site in Tac Cau and Ha Tien, southern Vietnam. These specimens represent the first record of G. longinquus in Vietnam, and further support a previously uncertain record in Thailand. The specimens collected are described and illustrated. Gymnothorax longinquus may prefer muddy shallow water from northern Australia to the Gulf of Thailand.