Crustaceans
Peacock Mantis Shrimp
Odontodactylus scyllarus · Crustacean — order Stomatopoda (mantis shrimps), a smasher-type stomatopod; not a true shrimp
The peacock mantis shrimp carries the fastest punch a diver will ever share water with — spring-loaded raptorial clubs that accelerate through water hard enough to crack crab armor, with a collapsing cavitation bubble striking a second time behind the blow. Aquarists call them thumb splitters; divers mostly meet flashes of emerald, scarlet, and turquoise scuttling between rubble burrows. The eyes may be stranger than the weapons: mounted on independent stalks, packed with more photoreceptor classes than almost any animal studied, and sensitive to polarized light, they track a passing diver like gun turrets. Females brood egg masses in the burrow, and monogamous pairs hold the same territory for years at some sites. Watch from a respectful half meter, and keep fingers, pointers, and dome ports away from the front door. The clubs answer for the shrimp.
どこで・いつ見られるか
「常駐（Resident）」とは、そのダイビングスポットでのほとんどのダイブで遭遇できることを意味します。「季節限定（Seasonal）」とは、記載された月に確実に見られることを意味します。それ以外の出会いはボーナスであり、計画の前提にはなりません。
| 目的地 | 信頼性 | 月 | メモ |
|---|---|---|---|
| Bali & Nusa PenidaIndonesia | Resident — seen on most dives | 年間を通じて | |
| AnilaoPhilippines | Resident — seen on most dives | 年間を通じて | |
| Similan Islands & Richelieu RockThailand | Resident — seen on most dives | 年間を通じて | |
| Lembeh StraitIndonesia | Resident — seen on most dives | 年間を通じて | |
| Dumaguete, Dauin & Apo IslandPhilippines | Resident — seen on most dives | 年間を通じて | |
| MoalboalPhilippines | Resident — seen on most dives | 年間を通じて |
ベストな月、一目でわかる
理解を深める
ハビタット: Rubble and sand near reefs, in U-shaped burrows the animal maintains and defends for long periods.
分布域: Indo-Pacific from East Africa and the Andaman Sea through the Coral Triangle to northern Australia and Japan.
生態・行動: Patrols near the burrow in bursts, tracking divers with independently swiveling eyes; females brood egg masses in the burrow, and pairs at some sites hold territories for years.
食性: Hard-shelled prey — crabs, snails, clams — cracked open with hammer-like raptorial clubs.
サイズ: 目安は 0.12 m; 確認済みの最大記録 0.18 m (body length).
出会ったときの正しいふるまい方
Observe from half a meter, never tease a burrow mouth with fingers or a pointer, and keep camera ports out of striking range of a displaying animal.
保全
Not formally assessed and locally common; collected for aquaria despite being a famously destructive tank resident.
目撃情報で知られるダイブサイト
動画を見る
公式チャンネルより
Best Places to Dive with Whale Sharks
Outrageously Tiny Fish
Sink or Swim? with Monét X Change | Monterey Bay Aquarium
動画はクリエイター自身のチャンネルへの埋め込みリンクです。当サイトはコンテンツをホストせず、すべての出典を明示しています。