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Setshwantsho sa khathune sa Mangrove horseshoe crab
No. 1402 ho 1 402

Mangrove horseshoe crab

Carcinoscorpius rotundicauda
Ka lebitso: 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
E ka bolayaE ka bolaya ntle le kalafo. Haeba motho a e ja, fumana thuso kapele.
Diphoofolo tse ding tse chefang E a chefa ha e jewaE ja: NamaE chefang, eseng e nang le chefo
Kotsi ho batho: E kotsi haholoE ka bolaya motho ya sa fumaneng kalafo.

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

E chefang kapa e nang le chefo? Diphoofolo tse nang le chefo di kenya chefo ka ho loma kapa ka ho hlaba. Diphoofolo tse chefang di kotsi ha o di ama kapa o di ja. Ena ke e chefang.
E phela
Tropical and brackish waters of India, Bangladesh and Southeast Asia. It may also occur in Sri Lanka, Myanmar and the Philippines.1
Lewatle la India, Lewatle la Pacific, Lewatle la China Borwa, Lewatle la Andaman, Kgwohlo ya Bengal
Lapeng
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
Bolelele
28 cm ho isa ho 40 cm (11 in ho isa ho 1,3 ft)1
Lebelo le phahameng
e ka bang 0,5 km/h (0,31 mph)
Ho sesa, kakanyo feela
E ja eng?
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
Ka nnete!Foto ya Mangrove horseshoe crab
Mangrove horseshoe crab. Foto: Amada44. CC BY 3.0, Wikimedia Commons.

Ho e tseba jwang

  • 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

Hangata e ferekanngwa le: 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

Matla a chefo

E a chefa ha e jewa

E kotsi feela haeba ho na le se e jang.

Chefo ya yona (e chefang ha o e ama kapa o e ja) e etsang?

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

E kotsi hakae ho batho?

Kotsi ho batho: E kotsi haholoE ka bolaya motho ya sa fumaneng kalafo.

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

Haeba motho a e amme kapa a e jele

  • Haeba motho a e jele kapa a na le matshwao ka mora ho e ja: letsetsa nomoro ya tshohanyetso kapa setsi sa chefo (poison centre) hang-hang.

Kamehla letsetsa nomoro ya tshohanyetso pele (112, 000, 911). Ena ke tataiso e akaretsang ya thuso ya pele, hase keletso ya bongaka. Metheo ya thuso ya pele

Dula o bolokehile

  • O se ke wa ama, wa tshwara kapa wa tena phoofolo ya naheng, leha e le e nyenyane, le leha e shebahala e robetse kapa e shwele.
  • E fe sebaka. Ha o kopana le yona, dula o kgutsitse, kgutlela morao butle mme o e tlohele e tsamaye ka tsela ya yona.
  • Haeba o e amme kapa o e jele: o se ke wa hohla mahlo kapa molomo, hlatswa matsoho mme o fumane thuso ya bongaka.

Ha e o batle. Chefo ya yona e teng feela hore ho se be le letho le e jang. Ho eketsehileng ka ho dula o bolokehile

Hokae lefatsheng?

AfrikaAsiaYuropaAmerika LeboyaAmerika BorwaAustralia le OceaniaLewatle la PacificLewatle la IndiaLewatle la China BorwaLewatle la AndamanKgwohlo ya Bengal

E kgolo hakae?

E telele hakae?

Mangrove horseshoe crab bolelele ba e ka bang 40 cm (1,3 ft)Banana e ka bang 18 cm (7,1 in)Katse ya lapeng e ka bang 50 cm (1,6 ft)
e telele jwaloka dibanana tse 2 tse latellanange telele jwaloka diboloko tsa ho bapala tse 12 moleng

Mangrove horseshoe crab e kgolo hakae ha e bapiswa le WENA?

Ke dipalo feela ka hara sebatli sa hao. Ha ho letho le bolokwang kapa le romelwang kae kapa kae.

E potlaka hakae?

ho molemo ho tseba

Dintlha

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

Ho senya ditshomo

Tshomo: All horseshoe crabs are safe to eat.

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

Bakeng sa ditsebi tsa chefo

Lebitso la saense
Carcinoscorpius rotundicauda
Sehlopha
Diphoofolo tse ding tse chefang
Lelapa
Limulidae2
Tatelano
Xiphosurida
Dikontinente
Lewatle la India, Lewatle la Pacific, Lewatle la China Borwa, Lewatle la Andaman, Kgwohlo ya Bengal, Mawatle
Masea
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
Kotsi ho batho
4 / 5: E kotsi haholo3

Moo dintlha di tswang teng

  1. Mangrove horseshoe crab (Wikipedia (CC BY-SA 4.0))
  2. Carcinoscorpius rotundicauda (iNaturalist): mabitso le tlhophiso.
  3. Venom Wiki: boemo ba kotsi, boholo bo tlwaelehileng le kakanyo ya lebelo ke tsa rona. Bona kamoo re di balang ka teng: Kamoo re lekanyang kotsi ka teng.

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Tse ding tsa sehlopha se le seng: Diphoofolo tse ding tse chefang

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E boetse e phela: Lewatle la India

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Fepa phephengnkgo ya ditjhelete tsa teboho, e e boloka e le mahala