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Setshwantsho sa khathune sa Xingu River ray
No. 1251 ho 1 402

Xingu River ray

Potamotrygon leopoldi
Ka lebitso: It is named in honour of King Leopold III of Belgium, who sponsored many scientific studies.1
E hloka ngakaHa e atise ho bolaya, empa ho hlajwa ho hloka ngaka.
Ditlhapi tse nang le chefo Ho hlabaE ja: Nama
Kotsi ho batho: E tebilengHo hlajwa ho hloka ngaka. Lefu le etsahala ka seoelo haholo.

The Xingu River ray is a freshwater stingray that lives only in the Xingu River basin in Brazil. It likes clear water over rocky riverbeds. It has a venomous spine in its tail, so it is one to admire from a distance.1

E phela
Xingu River basin, Brazil (endemic)1
Amerika Borwa
Lapeng
It prefers clear waters with rocky bottoms in the Xingu River basin. It is sometimes kept in aquaria.1
Bolelele
75 cm (2,5 ft)1
Boima
20 kg (44 lb)1
Lebelo le phahameng
e ka bang 15 km/h (9,3 mph)
Ho sesa, kakanyo feela
E ja eng?
Mature rays have jaws that become stiffer and more strongly mineralised with age, so they can eat hard-shelled invertebrates.1
Ka nnete!Foto ya Xingu River ray
Xingu River ray. Foto: Photo by and (C)2007 Derek Ramsey (Ram-Man). CC BY-SA 2.5, Wikimedia Commons.

Ho e tseba jwang

  • Deeper black above than its relative P. henlei1
  • Fewer and larger yellowish-white spots on the upper side than P. albimaculata1
  • Underparts are mostly brownish-dusky1
  • Females grow larger than males1

Hangata e ferekanngwa le: It is closely related to P. henlei from the Tocantins River basin and P. albimaculata from the Tapajós River basin, and they look similar. P. henlei has a large white centre on its underparts, while this species has mostly brownish-dusky underparts. P. albimaculata has more spots above, and they are smaller than the spots on this species.1

Matla a chefo

Ho hlaba

Chefo e tswa ka lemao le hlabang.

Chefo ya yona (eo e e kenyang ka ho loma kapa ho hlaba) e etsang?

The venom is held in a dentine spine on the tail. Its composition stays the same as the ray matures, but its toxicity decreases as the ray gets older.1

E kotsi hakae ho batho?

Kotsi ho batho: E tebilengHo hlajwa ho hloka ngaka. Lefu le etsahala ka seoelo haholo.

Haeba e hlaba

  • Kenya leqeba metsing a tjhesang, a tjhesang hoo motho a ka a mamellang ntle le ho tjha (a leke ka letsoho la hao pele), metsotso e 30 ho isa ho e 90. Fumana thuso ya bongaka, haholoholo bakeng sa di-stonefish le di-stingray.

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 e nngwe e o hlaba: dula o kgutsitse, o se ke wa sisinyeha, letsetsa nomoro ya tshohanyetso (112, 000, 911) kapa o ye sepetlele kapele. Hopola hore e ne e shebahala jwang, foto e a thusa.

Ha e o batle. E sebedisa chefo ya yona ho tshwara dijo kapa ho itshireletsa, mme e kgetha ho ipata. Ho eketsehileng ka ho dula o bolokehile

Hokae lefatsheng?

AfrikaAsiaYuropaAmerika LeboyaAmerika BorwaAustralia le Oceania

E kgolo hakae?

E telele hakae?

Xingu River ray bolelele ba e ka bang 75 cm (2,5 ft)Katse ya lapeng e ka bang 50 cm (1,6 ft)Ntja e ka bang 1 m (3,3 ft)

E boima hakae?

e boima jwaloka dikatse tsa lapeng tse 5
e telele jwaloka dibanana tse 4 tse latellanange ka sesa bolelele ba letangwane le leholo la ho sesa (50 m) ka metsotswana e 12

Xingu River ray 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 venom toxicity drops as it gets older, while the venom's makeup stays the same.1

2

It can weigh up to 20 kg, which is very large for a freshwater stingray.1

3

As it matures, its jaws become stronger, which lets it eat hard-shelled invertebrates.1

4

Females grow larger than males.1

Bakeng sa ditsebi tsa chefo

Lebitso la saense
Potamotrygon leopoldi
Sehlopha
Ditlhapi tse nang le chefo
Lelapa
Potamotrygonidae2
Tatelano
Myliobatiformes
Dikontinente
Amerika Borwa
Kotsi ho batho
3 / 5: E tebileng3

Moo dintlha di tswang teng

  1. Xingu River ray (Wikipedia (CC BY-SA 4.0))
  2. Potamotrygon leopoldi (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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