The Fish Atlas
幽灵鲨
Spotted Ratfish
Hydrolagus colliei
水质类型
海水
Marine
体长
38–100 cm
中型鱼
生活水层
200–1500 m
无光层
性格
温和
无领地意识
🔬 物种简介
幽灵鲨（银鲛类）是鲨鱼的古老近亲，但进化分支在约4亿年前就已分离。半透明的皮肤、巨大的眼睛和发光的侧线系统赋予了它幽灵般的外观。背鳍有含毒腺的棘刺用于防卫，雄性额头上有独特的额器，功能至今仍是谜。
Wikipedia
The spotted ratfish is a chimaera found in the north-eastern Pacific Ocean. Often seen by divers at night in the Pacific Northwest, this cartilaginous fish gets its characteristic name from a pointed rat-like tail. The ratfish lays leathery egg cases on the bottom of muddy or sandy areas, which are often mistaken by divers as something inanimate. While mainly a deep-water species, it occurs at shallower depths in the northern part of its range. The generic name, Hydrolagus, comes from the Greek words ὕδωρ, meaning water, and λαγώς/λαγῶς, meaning hare, and the specific name honors Alexander Collie, who was a ship surgeon and early naturalist. The spotted ratfish is common in much of its range, not typically eaten by humans, and is not commercially caught.
群落兼容性
性情温和，可与多数鱼类混养
分类信息
| 科 | 兔银鲛科 Chimaeridae |
| 属 | 银鲛属 Hydrolagus |
| 原产地 | 北太平洋深水区，从阿拉斯加到墨西哥下加利福尼亚 |
| 体长 | 38–100 cm |
水层分布
栖息深度：200–1500 m