noun
yellow-bellied sea snake; pelagic sea snake
A venomous sea snake found in tropical oceans; scientific name Pelamis platura.
セグロウミヘビは世界中の暖かい海に広く分布している。
The yellow-bellied sea snake is widely distributed in warm oceans around the world.
この海岸では時々セグロウミヘビが打ち上げられる。
Yellow-bellied sea snakes are sometimes washed ashore on this beach.
Compound of 背黒 (seguro, 'black-backed') + 海蛇 (umihebi, 'sea snake'), referring to its dark dorsal coloration.