No. 0112 / 1 402

Aquatic coral snake

Micrurus surinamensis

命をうばうこともある治療しないと命にかかわる。かまれたら、急いで助けを呼ぼう。

かむ食べもの：肉

The aquatic coral snake is a venomous snake that spends much of its time in water. It is one of the heaviest and sturdiest coral snakes, and it lives in the forests of northern South America. It is special because it swims well and can stay underwater for a long time.1

すんでいる場所

Northern South America: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela1

南アメリカ

ホーム

It prefers humid forests with low mountains and tropical forests along streams, rivers and other bodies of water. It can be common in humid lowland forest from near sea level up to 600 m.1

長さ

80 cmから1.4 m (2.6 ftから4.4 ft)1

最高速度

時速約5.3 km（時速3.3マイル）

陸で, おおまかな予想

何を食べるの？

It mainly eats swamp eels such as Synbranchus marmoratus, bony fishes such as Callichthys callichthys and Gymnotus carapo, amphibians, and other snakes.1

Aquatic coral snakeの写真 — Aquatic coral snake。写真：dhfischer。 CC BY 4.0, iNaturalist.

見分け方

The head is mainly red with black edging on the scales.1
The head is large with a long snout, and the eyes and nostrils sit higher on the head than in other coral snakes.1
The body has wide red rings separated by groups of three black rings, with narrow cream or yellowish rings between the black bands.1
The scales are smooth and shiny, and arranged in 15 rows.1
Adults usually measure 80 to 100 cm, tail included.1

毒パワー

かむ

かむときに、毒が牙や歯から出るよ。

その毒（かむ・刺す毒）はどうなるの？

Its venom is neurotoxic, meaning it attacks the nerves. It blocks signals between nerves and muscles, which causes paralysis. Symptoms can include blurred vision, difficulty speaking, swallowing and walking, and breathing failure. In a well-reported case in the Amazon, the victim reached hospital about 20 minutes after the bite.1

人にとってどれくらい危険？

人への危険: とても危険治療を受けないと、人の命をうばうことがある。

Bites are rare, but the venom can cause paralysis of the cranial nerves and can be fatal. The estimated lethal dose for an adult human is 18–20 mg, which is higher than the 4–7 mg for smaller coral snake species. Because it is a large snake, it can carry a lot of venom, with an average yield of 56 mg and a maximum of 160 mg when milked by scientists.1

いい知らせ：お医者さんには、これに効く薬（抗毒素）か治療法があるよ。1

こわいとき、どうするの？

When threatened, it flattens its body and raises its tail.1

かまれたら

A bite needs hospital care. In a recorded case, the victim needed mechanical ventilation because paralysis of the breathing muscles made it hard to breathe, and was given specific Micrurus antivenom.1
かまれたところが小さく見えても、その人をじっとさせて落ちつかせ、急いで病院へ：症状は何時間もあとに出ることがあるよ。

まず必ず救急番号（112、000、911）に電話しよう。これは一般的な応急手当の案内で、医療のアドバイスではないよ。応急手当の基本