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Nataal bu ñu rëdd ci Black long-spined urchin
No 1270 ci 1 402

Black long-spined urchin

Diadema setosum
Dafay metti rekkBul laalDafay metti, waaye du la lor bu bon.
Oursin, biddiwu géej ak ver Dag yu am daŋarDafay lekk: Gàncax
Musiba ci nit: Dafay mettiMën na metti lool, waaye lu bon du faral di am.

The black long-spined urchin is a sea urchin with very long, hollow spines. It lives on coral reefs, sand flats and seagrass beds across the Indo-Pacific, and it is one of the most widespread sea urchins in that region. Its spines can deliver a mild venom, so it is best to watch where you put your feet.1

Dafay dund ci
Indo-Pacific region, from the Red Sea and east Africa to Australia and Japan; also found in the Mediterranean off Turkey after introduction1
Mbàmbulaanu End, Mbàmbulaanu Pasifik, Géej gu Xonq, Géeju Koraay, Géeju Filipin, Géeju Arabi ak Golfu Pers, Géeju Timor ak Arafura, Golfu Bengal
Kër
Commonly found on coral reefs, but also on sand flats and in seagrass beds. In Hong Kong it is found on rocky reefs, where it can be very numerous. People most often meet it by stepping on it in shallow water.1
Guddaay
7 cm (2,8 in)1
Diisaay
35 g ba 80 g (1,2 oz ba 2,8 oz)1
Gaawaay bu gën a kawe
lu tollu ci 0,02 km/h (0,01 mph)
Féey, xalaat
Lan lay lekk?
It is a prolific grazer that feeds on many kinds of algae common on tropical coral reefs.1
Dëgg-dëgg!Fotoy Black long-spined urchin
Black long-spined urchin. Foto: Quartl. CC BY-SA 4.0, iNaturalist.

Ni ngay ko xàmmee

  • Black, near-spherical body (test) with extremely long, narrow, hollow spines, often black but sometimes brown-banded1
  • Five white spots on the body, which separate it from other Diadema species1
  • A bright orange ring around the periproctal cone (the 'anal cone'), which is often mistaken for an eye1
  • Bluish spots on the genital plates and a line of blue spots along the body1
  • Adults are no more than 70 mm across the body and about 40 mm high1

Ñu ngi koy faral di jaxasoo ak: Other Diadema species are similar in shape and spines, but they lack the five white spots that mark this species. Its orange ring and blue spots also help to tell it apart.1

Kàttanu daŋar

Dag yu am daŋar

Ay dag yu ñaw ñoo yor daŋar bi. Teg tànk ci kawam walla jàpp ko dafay metti.

Lan la daŋar biy sóob di def?

The spines are hollow and contain a mild venom. The toxin mostly causes swelling and pain, which spreads gradually over several hours. The venom is not fatal to humans. The spines themselves are a bigger problem, because they are brittle and needle-like, break off in flesh and are difficult to remove.1

Ni mu lore nit ñi?

Musiba ci nit: Dafay mettiMën na metti lool, waaye lu bon du faral di am.

The venom is only mild, and the species is not considered a serious threat to humans. Stepping on it can cause painful stings.1

Lan lay def bu tiitee?

When threatened by a sudden impact or by spines snapping, it rapidly flips its body over and 'runs' on the tips of its longest spines.1

Su ay dagam jamee la

  • Teg gaañu-gaañu bi ci ndox mu tàng, lu nit ki mën a muñ waaye bu dul ko lakk, te wutal ndimbal doktoor ngir dindi dag yi. Bul gas ngir wut leen sa bopp.

Saa su nekk, woo jëkk sa nimerob urgence (112, 000, 911). Lii ay ndigal yu yaatu ci ndimbal yu jëkk la, du ndigalu doktoor. Li war a xam ci ndimbal yu jëkk

Sàmmal sa bopp

  • Bul laal mukk, bul jàpp, bul sonal ab rab bu àll, doonte bu ndaw la, te doonte dafa mel ni dafa nelaw walla dafa dee.
  • May ko bérab. Su nga ko gisee, dalal, dellu ginnaaw ndànk-ndànk te bàyyi ko mu dem yoonam.
  • Su ay dagam jamee la: dalal, bul yëngu, woo sa nimerob urgence (112, 000, 911) walla dem lopitaan ci gaaw. Bul fàtte ni mu meloon, ab nataal dina dimbali.

Du la wut. Dafay jëfandikoo daŋaram ngir jàpp lu muy lekk walla ngir aar boppam, te nëbbu moo ko gën a neex. Yeneen ci ni ngay sàmme sa bopp

Fan ci àddina?

AfrigAsiTugalAmerig gu Bëj-gànnaarAmerig gu Bëj-saalumOstarali ak OseyaniMbàmbulaanu PasifikMbàmbulaanu EndGéej gu XonqGéeju KoraayGéeju FilipinGéeju Arabi ak Golfu PersGéeju Timor ak ArafuraGolfu Bengal

Ni mu réye?

Ni mu guddoo?

Black long-spined urchin guddaayam lu tollu ci 7 cm (2,8 in)Ab trombone lu tollu ci 3 cm (1,2 in)Ab smartphone lu tollu ci 15 cm (5,9 in)

Ni mu diise?

diis na ni 80 trombone
guddu na ni 2 bloku tabax yu ñu toftalegën a yéex escargot bu tóokër

Black long-spined urchin ni mu réye ci wetu YOW?

Ay waññ rekk ci sa navigateur. Dara du denc te dara du yónnee fenn.

Ni mu gaawe?

baax na xam

Xibaar

1

It can move 760 mm in just 7 seconds by rolling and walking on the tips of its spines.1

2

It has no eye, but it has a diffuse light-sensing system that lets it detect light levels and the size and colour of objects.1

3

In 2006, living specimens were found off Turkey, making it the first invasive Erythrean sea urchin recorded in the Mediterranean.1

4

Goose barnacles of the genus Microlepas are known to live on it as parasites.1

5

It is considered one of the oldest living species in its genus, Diadema.1

Tasukatu léeb

Xalaat bu juum: Black long-spined urchins are deadly and their stings can kill people.

Dëgg: Their venom is mild and is not fatal to humans. The main problems are pain, swelling and spines that break off in the skin.1

Ngir boroom xam-xam ci daŋar

Turu xam-xam
Diadema setosum
Mbooloo
Oursin, biddiwu géej ak ver
Njaboot
Diadematidae2
Toftal
Diadematoida
Kontinaa yi
Mbàmbulaanu End, Mbàmbulaanu Pasifik, Géej gu Xonq, Géeju Koraay, Géeju Filipin, Géeju Arabi ak Golfu Pers, Géeju Timor ak Arafura, Golfu Bengal, Mbàmbulaan yi
Liir yi
It is a broadcast spawner, releasing eggs and sperm into the water. Spawning happens seasonally or year-round depending on the location, and in some places it follows the full moon.1
Musiba ci nit
2 / 5: Dafay metti3

Fa xibaar yi jóge

  1. Diadema setosum (Wikipedia (CC BY-SA 4.0))
  2. Diadema setosum (iNaturalist): tur ak ni ñu leen séddale.
  3. Venom Wiki: tolluwaayu musiba bi, réyaay bu yem bi ak xalaatu gaawaay bi, nun ñoo leen defar. Seetal ni nu leen waññe: Ni nuy natte musiba.

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