Macro
Spanish Dancer
Hexabranchus sanguineus · Marine gastropod mollusk, family Hexabranchidae; one of the largest nudibranchs known
Most nudibranchs crawl; the Spanish dancer, disturbed, lets go of the reef and swims, mantle skirts flaring and rolling in the deep-red flamenco motion that named it. It ranks among the largest of all nudibranchs, a crimson animal that can reach forearm length, and it is almost strictly nocturnal, which makes it a signature night-dive find across the Indo-Pacific and Red Sea. By torchlight look for one plowing across open reef between sponge meals, often carrying passengers: emperor shrimp ride the mantle folds like deckhands. Its eggs are as recognizable as the animal, a rose-shaped ribbon of pink spirals fixed to hard bottom and chemically defended like the adult. Watch a voluntary swim from a respectful distance; forced performances exhaust an animal with nowhere to hide.
在哪里、什么时候能见到
"常驻"表示在该目的地潜水时大多数情况下都能遇见它们；"季节性"表示在所列月份内可靠出现；其他任何情况都是意外惊喜，而非计划中的保障。
| 目的地 | 可靠性 | 月份 | 备注 |
|---|---|---|---|
| Sharm El Sheikh & Ras MohammedEgypt | Occasional | 全年皆宜 | |
| North & South Malé AtollsMaldives | Occasional | 全年皆宜 | |
| Marsa Alam & the Deep SouthEgypt | Occasional | 全年皆宜 | |
| Lembeh StraitIndonesia | Occasional | 全年皆宜 | |
| Kona, HawaiʻiUnited States | Occasional | 全年皆宜 |
最佳月份一览
深入了解
栖息地: Coral reefs, rubble, and lagoon slopes, sheltering by day and crossing open bottom at night between sponge meals.
分布范围: Tropical Indo-Pacific and Red Sea, east to Hawaii and French Polynesia.
习性: Almost strictly nocturnal; crawls like any dorid until disturbed, then swims free with rolling flexes of its flared crimson mantle. Lays a rose-shaped pink egg ribbon on hard bottom.
食性: Sponges, favoring chemically defended species whose compounds it stores for its own protection.
体型: 通常约 0.25 m; 记录深度可达 0.6 m (body length; most individuals run 20–30 cm).
与它相处时的行为守则
If the swimming display happens, enjoy it, but never lift, prod, or fan an animal loose to force a performance, and leave the egg roses unhandled.
保育
Not formally assessed; conspicuous size makes it a frequent harassment victim, which responsible operators actively brief against.
以此著称的已标注潜点
高亮显示的潜点由编辑团队为该物种标注；数字为1990年以来潜点约5公里范围内的GBIF出现记录数。
观看
来自官方渠道
Wildlife of Monterey | New film in our auditorium
Live Aviary Cam | Monterey Bay Aquarium
Live Aviary Cam | Monterey Bay Aquarium
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