sentences:  Apparently solitary in nature, the longtail stingray is a predator of bottom-dwelling bony fishes and invertebrates, in particular stomatopods, decapods, and molluscs.Known parasites of this species include the tapeworms "Acanthobothrium cimari", "A. cleofanus", "A. costarricense", "A. puntarenasense", and "A. vargasi", "Anthocephalum lukei" and "A. michaeli", "Parachristianella dimegacantha", "Pseudochristianella elegantissima" and "P. nudiscula", and "Pterobothrioides carvajali", and the monogenean "Listrocephalos whittingtoni".Like other stingrays, the longtail stingray is aplacental viviparous with the developing embryos sustained initially by yolk and later by histotroph ("uterine milk") produced by the mother.