Burnt-tailed barb

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Burnt-tailed barb

Critically endangered, possibly extinct  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Barbinae
Genus: Balantiocheilos
Species:
B. ambusticauda
Binomial name
Balantiocheilos ambusticauda
H. H. Ng & Kottelat
, 2007

The burnt-tailed barb (Balantiocheilos ambusticauda), also known as Siamese bala-shark,[1] is a possibly extinct freshwater fish species from the family Cyprinidae. It is or was endemic to the Mae Klong and Chao Phraya River basins in Thailand.[1]

Taxonomy and discovery

The burnt-tailed barb was long considered as

Bung Boraphet, Nakhon Sawan province, Thailand. The material labelled as paratypes was collected by Rodolphe Meyer de Schauensee in 1936, by M. Harmand in 1883, and by Marie Firmin Bocourt
in 1862.

Description

The burnt-tailed barb is closely related to the bala shark (B. melanopterus). It differs from its congener by a shorter snout, grooves which are posteriorly directed at rictus curved (vs. straight in the bala shark), and narrower black margins on the pelvic and anal fins (on distal third or less compared to the bala shark where the black margins are on distal half or more).

Distribution and status

It is

IUCN.[1] The closely related B. melanopterus has been reported from the same rivers, but this is due to confusion with B. ambusticauda; the true native range of B. melanopterus is further south in the Malay Peninsula, Borneo and Sumatra.[2] Large numbers of B. melanopterus are exported from Thailand for the aquarium trade, but these are all captive bred.[1]

From

Thung Khru district), Bangkok's Thonburi side in 1986.[3]

Despite surveys within its native range, it has not been recorded in more than three decades and is likely

critically endangered (rather than extinct) in the hope that a small undiscovered population remains.[1] It has been speculated that capture for the aquarium trade was the reason for its drastic decline,[4] but this is unsubstantiated.[2] There has been extensive habitat destruction (pollution, drainage and dams) within its range[5][6][7] and it is suspected it is sensitive to water quality.[1]

References

  1. ^
    doi:10.2305/IUCN.UK.2011-1.RLTS.T180665A7649599.en
    . Retrieved 20 November 2021.
  2. ^ a b c d e f Ng, Heok Hee; Kottelat, Maurice (2007). "Balantiocheilos ambusticauda, a new and possibly extinct species of cyprinid fish from Indochina (Cypriniformes: Cyprinidae)". Zootaxa 1463: 13–20.
  3. ^ Kittipong Jaruthanin & Chavalit Vidthayanon, ปลาน้ำจืดหายากที่สุด ๑๐ ชนิดของไทย (The Top - Ten endangered freshwater fishes of Thailand), Aquarium Biz, Vol. 2 Issue 16 (October 2011) Thai: ภาษาไทย
  4. ^ Humphrey, S.R. & Bain, J.R. (1990). Endangered animals of Thailand. Sandhill Crane Press, Gainesville, 468 pp.
  5. ^ Samorn Muttamara, S. & Sales, C. L. (1994). Water quality management of the Chao Phraya River (a case study). Environmental Technology 15(6).
  6. ^ Molle, F. (2005). Elements for a political ecology of river basins development: The case of the Chao Phraya river basin, Thailand. Paper presented to the 4th Conference of the International Water History Association, December 2005, Paris.
  7. ISBN 978-2-8317-1424-0
    .
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