Species Spotlight · 13 Sep 2023
The round ribbontail ray inhabits tropical Indo-Pacific nearshore environments and eastern Pacific island waters. This stingray species resides on lagoon, estuary, and reef bottoms at depths between 20-60 metres. The animal displays a distinctive appearance with a thick, rounded pectoral fin disc with little tubercles on top, and a short tail featuring a deep ventral fin fold. Its colouring includes a dark tail and an irregular but striking bright and dark speckled pattern on its upper body.
The species is nocturnal and may be solitary or social. It actively hunts small bottom-dwelling molluscs, crustaceans, and fish. Reproduction involves producing up to seven offspring, with embryos initially nourished by yolk and later by maternal secretions. Though non-aggressive, the ray possesses a venomous tail spine for self-defence. Conservation concerns stem from habitat loss and fishing pressure, resulting in a "Vulnerable" rating from the International Union for Conservation of Nature (IUCN).
The species rarely initiates conflict but may approach divers out of curiosity. Provocation can trigger a serious wound from its venomous spine. Its impressive size and striking appearance make it a popular attraction for ecotourism diving operations.