Ocellate river stingray | 台北市立動物園資訊網
Size:Thesestingrayscanreachadiameteroftwofeet(0.61m).Behavior:Ocellateriverstingraysarepotamodromous,meaningtheymigratewithinfreshwater ...
Description: Ocellate river stingrays have an oval disc shaped body. The upper surface is grayish- brown with yellow-orange spots trimmed in black and the underside is white. The eyes are raised from the dorsal surface. The robust tail has a venomous spine at its tip that is capable of inflicting pain.
Size: These stingrays can reach a diameter of two feet (0.61 m).
Behavior: Ocellate river stingrays are potamodromous, meaning they migrate within freshwater rivers and streams for short periods of time. They bury themselves in the sandy sediment of rivers and streams.
Diet: At first, the young feed on plankton, but as they grow, they eat crustaceans, small mollusks and larvae of aquatic insects. As adults they eat mainly fish and crustaceans.
Senses: Their eyes, positioned on the dorsal surface of their head, gives them nearly a 360° field of vision. The...
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【珍珠魟】:江魟科;
身體呈圓盤狀,背部色彩由褐色至淡褐色,上有圓形奶油狀的斑點散布,尾柄的棘刺為中空的構造,有分泌毒液的毒腺及儲藏毒液的...