The slender white sardine (Escualosa elongata) is a species of sardine (family Clupeidae) in the genus Escualosa.[1] It was described by Thosaporn Wongratana in 1983.[2] It is a tropical fish which was discovered at a Sunday market in Bangkok, Thailand, though the two specimens (holotype: BMNH 1973.1.18.1; paratype: CUB (uncat. 1)[3]) were caught off the eastern coast of the Gulf of Thailand.[1] The sardines are known to swim at a maximum depth of 50 metres. The largest known standard length for the species is 6.7 centimetres (2.64 inches).[1] [3] It is distinguished from its sister species, Escualosa thoracata (the white sardine) by having a slenderer body, earning it its common name, and also by a silver band on its flank.[1]