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Àwòrán kátúùnù Mangrove horseshoe crab
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Mangrove horseshoe crab

Carcinoscorpius rotundicauda
Nípa orúkọ náà: It is named after mangrove swamps, where it lives. The other name, round-tailed horseshoe crab, refers to its tail, which is rounded in cross section.1
Ó lè paniÓ lè pani bí kò bá sí ìtọ́jú. Bí ẹnìkan bá jẹ ẹ́, wá ìrànlọ́wọ́ kíákíá.
Àwọn ẹranko onímájèlé mìíràn Onímájèlé tí a bá jẹ ẹ́Oúnjẹ rẹ̀: ẸranOnímájèlé, kì í ṣe olóró
Ewu fún ènìyàn: Ó léwu gan-anÓ lè pa ènìyàn tí kò bá rí ìtọ́jú.

The mangrove horseshoe crab is a sea creature with a hard shell and a long spiky tail. It lives in warm, shallow, muddy coastal waters in South and Southeast Asia. Its flesh contains a deadly poison, so it is important to know it apart from a safe relative.1

Onímájèlé tàbí olóró? Àwọn ẹranko olóró máa ń fi oró sínú ara nípa ìbùjẹ tàbí ìtani. Àwọn ẹranko onímájèlé léwu láti fọwọ́ kàn tàbí láti jẹ. Onímájèlé ni èyí.
Ó ń gbé ní
Tropical and brackish waters of India, Bangladesh and Southeast Asia. It may also occur in Sri Lanka, Myanmar and the Philippines.1
Òkun Íńdíà, Òkun Pàsífíìkì, Òkun Gúúsù Ṣáínà, Òkun Andaman, Ìyawọlẹ̀ Òkun Bẹ̀ngál
Ilé
It lives in shallow waters with soft, sandy bottoms or extensive mud flats, especially brackish, swampy areas such as mangroves. It spends most of its life close to or on the bottom. People meet it when fishermen collect it for food in Southeast Asia.1
Gígùn
28 cm sí 40 cm (11 in sí 1.3 ft)1
Ìyára gíga jùlọ
nǹkan bí 0.5 km/h (0.31 mph)
Lílúwẹ̀ẹ́, àfojúbù
Kí ni ó máa ń jẹ?
It is a selective feeder on the bottom, eating mainly insect larvae, small fish, small crabs and thin-shelled bivalves. It has no jaws, so it grinds food with bristles on its legs and passes it to its mouth with its small front pincers.1
Ní tòótọ́!Fọ́tò Mangrove horseshoe crab
Mangrove horseshoe crab. Fọ́tò: Amada44. CC BY 3.0, Wikimedia Commons.

Bí o ṣe lè dá a mọ̀

  • It is the smallest of the four living horseshoe crab species.1
  • Its tail has a rounded cross section. In the other species the tail is essentially triangular.1
  • Females are larger than males. Females are typically about 30.5 to 31.5 cm long including the tail.1
  • Adults have a large dome-shaped front shell, a smaller rear shell with spines on its edge, and a spike-like tail.1

A sábà máa ń ṣì í mọ̀ sí: It is often confused with Tachypleus gigas, which is harmless to eat. The mangrove horseshoe crab has a rounded tail, while T. gigas has a triangular one. Tachypleus tridentatus can live in the same habitat.1

Agbára májèlé

Onímájèlé tí a bá jẹ ẹ́

Ó léwu kìkì bí ohun kan bá jẹ ẹ́.

Kí ni májèlé rẹ̀ máa ń ṣe?

Its flesh contains tetrodotoxin (TTX), a poison that is lethal. This is a poison in the food, not a venom from a bite or sting.1

Báwo ló ṣe léwu tó fún ènìyàn?

Ewu fún ènìyàn: Ó léwu gan-anÓ lè pa ènìyàn tí kò bá rí ìtọ́jú.

Several cases of food poisoning have happened after people ate this crab, and some of these cases were fatal. These cases usually occur when the crab is mistaken for the harmless T. gigas.1

Bí ẹnìkan bá fọwọ́ kàn án tàbí jẹ ẹ́

  • Bí ẹnìkan bá jẹ ẹ́ tàbí tí ó ní àmì àìsàn lẹ́yìn tí ó jẹ ẹ́: pe nọ́ńbà pàjáwìrì rẹ tàbí ibùdó ìmọ̀ràn májèlé lẹ́sẹ̀kẹsẹ̀.

Máa kọ́kọ́ pe nọ́ńbà pàjáwìrì rẹ nígbà gbogbo (112, 000, 911). Èyí jẹ́ ìtọ́sọ́nà ìtọ́jú àkọ́kọ́ gbogbogbò, kì í ṣe ìmọ̀ràn ìṣègùn. Ìpìlẹ̀ ìtọ́jú àkọ́kọ́

Wà láìléwu

  • Má ṣe fọwọ́ kan, mú tàbí yọ ẹranko igbó lẹ́nu láéláé, kódà bí ó bá kéré, kódà bí ó bá dà bí ẹni pé ó ń sùn tàbí ó ti kú.
  • Fún un ní àyè. Bí o bá pàdé ọ̀kan, farabalẹ̀, sẹ́yìn díẹ̀díẹ̀ kí o sì jẹ́ kí ó máa bá ọ̀nà rẹ̀ lọ.
  • Bí o bá fọwọ́ kàn án tàbí jẹ ẹ́: má ṣe fọwọ́ pa ojú tàbí ẹnu rẹ, fọ ọwọ́ rẹ kí o sì wá ìrànlọ́wọ́ ìṣègùn.

Kò wá ọ kiri láti ṣe ọ́ léṣe. Májèlé rẹ̀ wà níbẹ̀ kìkì kí ohunkóhun má baà jẹ ẹ́. Sí i nípa wíwà láìléwu

Báwo ló ṣe tóbi tó?

Báwo ló ṣe gùn tó?

Mangrove horseshoe crab gígùn rẹ̀ tó nǹkan bí 40 cm (1.3 ft)Ọ̀gẹ̀dẹ̀ kan nǹkan bí 18 cm (7.1 in)Ológbò ilé nǹkan bí 50 cm (1.6 ft)
ó gùn tó ọ̀gẹ̀dẹ̀ 2 tí a tò tẹ̀léraó gùn tó bíríkì ìṣeré 12 tí a tò sí ìlà kan

Báwo ni Mangrove horseshoe crab ṣe tóbi tó tí a bá fi wé ÌWỌ?

Ìṣirò nìkan nínú bráwúsà rẹ. A kò fi ohunkóhun pamọ́, a kò sì fi ránṣẹ́ sí ibikíbi.

Báwo ló ṣe yára tó?

ó yẹ ní mímọ̀

Òtítọ́

1

Its flesh contains a lethal poison, but its roe is a prized delicacy in Thailand, where it is served in a salad called yam khai maeng da.1

2

Horseshoe crabs have remained almost unchanged in shape and size for millions of years, and their fossils over 400 million years old look almost identical to living ones.1

3

Juveniles grow about 33% bigger each time they moult, taking about five moults to grow from 2 cm to adult size.1

4

Males cling to the backs of females for long periods before the eggs are laid, and it is thought that this species is monogamous.1

5

Horseshoe crabs have two compound eyes, which are mainly used to find a mate.1

Olùfọ́ àròsọ

Àròsọ: All horseshoe crabs are safe to eat.

Òtítọ́: The mangrove horseshoe crab is not safe. Its flesh contains lethal tetrodotoxin, unlike T. gigas, which is harmless to eat.1

Fún àwọn amòye oró

Orúkọ sáyẹ́ǹsì
Carcinoscorpius rotundicauda
Ẹgbẹ́
Àwọn ẹranko onímájèlé mìíràn
Ìdílé
Limulidae2
Ètò
Xiphosurida
Àwọn kọ́ńtínẹ́ńtì
Òkun Íńdíà, Òkun Pàsífíìkì, Òkun Gúúsù Ṣáínà, Òkun Andaman, Ìyawọlẹ̀ Òkun Bẹ̀ngál, Àwọn òkun ńlá
Àwọn ọmọ
Females lay about 3500 eggs in a hole dug in the sand or mud, and the male fertilises them. The large eggs hatch after a couple of weeks into miniature versions of the adults.1
Ewu fún ènìyàn
4 / 5: Ó léwu gan-an3

Ibi tí àwọn òtítọ́ ti wá

  1. Mangrove horseshoe crab (Wikipedia (CC BY-SA 4.0))
  2. Carcinoscorpius rotundicauda (iNaturalist): orúkọ àti ìpínsísọ̀rí.
  3. Venom Wiki: ìpele ewu, ìtóbi déédé àti àfojúbù ìyára jẹ́ tiwa. Wo bí a ṣe ń ṣírò wọn: Bí a ṣe ń díwọ̀n ewu.

Gbogbo òtítọ́ ojú-ìwé yìí ní nọ́ńbà tó tọ́ka sí orísun rẹ̀. Bí a bá ṣe àṣìṣe, má bínú, olólùfẹ́ ẹranko ni wá, kì í ṣe ìwé ìròyìn sáyẹ́ǹsì. Sọ fún wa ní [email protected] a ó sì tún un ṣe.

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Sí i láti inú ẹgbẹ́ kan náà: Àwọn ẹranko onímájèlé mìíràn

Ó tún ń gbé ní: Òkun Íńdíà

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