通称：广翅鲎
物种：板足鲎目
时代：志留纪
食性：食肉动物
性情：攻击型
野生
广翅鲎只能在岛屿周围水域的最深处找到，它是一种危险而且适应性强的节肢动物。即使在大洋深处，广翅鲎在觅食方面没有任何困难。 广翅鲎的威胁并不单单是因为它的蛮力，而是因为其高防御外骨骼和导致衰弱的毒液混合产生的强力效果。广翅鲎的叮咬能麻痹对方并不断减少耐力，很快就会让其失去任何防御能力。
家养
广翅鲎因低下的智力不足以被驯化，但这并不意味着对于人类族群来说没有任何用途。它们是昆虫甲壳的优秀来源，此外消化道通常还含有硅石珍珠。 有时甚至还会含有极其稀有的黑珍珠，可由幸存者用于先进制造上，这也让它们成为岛屿上最具价值的生物之一。
Common name: Eurypterid
Species: Jaekelopterus eurypterus
Time: Silurian
Diet: Carnivore
Temperament: Aggressive
Wild
Found only in the deepest depths of the waters around the Island, Eurypterids are dangerous and adaptable arthropods. As likely to hunt as they are to scavenge, a Eurypterid rarely has difficulty finding food to keep itself nourished, even at the bottom of the ocean. An Eurypterid's threat comes not directly from its raw strength. Instead, it combines a hard defensive exoskeleton with debilitating poison to powerful effect. The sting of a Eurypterid increases torpor while reducing stamina, quickly rendering its opponent unable to defend itself.
Domesticated
While Eurypterids are not intelligent enough to be tamed, this doesn't mean they are without utility to tribes. They are a wonderful source of chitin, and their digestive tract often contains Silica pearls. They sometimes even have ingested incredibly rare Black Pearls, used by survivors for advanced manufacturing, making them among the most valuable creatures on the island.
