Hypsibarbus

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Hypsibarbus
Diamond barbel (Hypsibarbus pierrei)

Diamond barbel ( Hypsibarbus pierrei )

Systematics
without rank: Otophysa
Order : Carp-like (Cypriniformes)
Subordination : Carp fish-like (Cyprinoidei)
Family : Carp fish (Cyprinidae)
Subfamily : Poropuntiinae
Genre : Hypsibarbus
Scientific name
Hypsibarbus
Rainboth , 1996

Hypsibarbus is a genus of carp fish found in Southeast Asia .

description

Fish of the genus Hypsibarbus are medium-sized to large, high-backed, laterally strongly flattened barbel. Their head length is greater than head height, the eyes are moderately large, in adult animals their diameter is smaller than the length of the snout. The mouth is below, there are two pairs of barbels . Sometimes there is a notch behind the back of the head, followed by an elongated but evenly curved neck.

The scales are big. On the side there are at least 23 and a maximum of 32 in a row, at the base of the caudal fin there are two more. In most species there are 14 scales around the tail stalk, in two species there are 16, in other species the number varies from 14 to 16. Laterally, the scales are silver-colored towards the belly, but they become greenish towards the back silver coloring. Above the sideline and on the back, the edges of the scales are black and result in a reticulated pattern.

The fins of Hypsibarbus are often tall or long with elongated crescent tips. The last undivided ray of the dorsal fin is a hard ray strongly toothed backwards. The pectoral fins are transparent, apart from the anal fin and pelvic fins, which are often bright yellow to orange-red, the fins are gray. The first ray of the anal fin and the pelvic fins can be milky white.

Occurrence and habitat

Representatives of Hypsibarbus prefer to live in large lowland rivers in Southeast Asia with coarse-grained, sandy subsoil. Waters with a fine substrate, such as reservoirs with a loam or clay base, do not offer the species optimal living conditions. The river system of the Mekong , Mae Nam Chao Phraya , Mae Nam Mae Klong or the Khorat plateau in Thailand offer ideal habitats . They prefer forested river sections.

Way of life

During the dry season, the fish live in the main stream, where the water is relatively clear at this time of year and flows slowly. When the rainy season sets in, the animals migrate into the floodplain forests.

Systematics

The name comes from ancient Greek: Hypsibarbus , hypsi from high and barbus from "Bartelträger". The genus Hypsibarbus is close to the genera Poropuntius (Smith) and Barbodes (Bleeker).

species

Rainboth identified six species in Thailand in 1996 on the basis of body proportions, number of gills and scales and geographical distribution: H. lagleri , H. malcolmi , H. salweenensis , H. suvattii , H. vernayi and H. wetmorei . A more recent study (2001) by Sunairattanaporn counts six species in Thailand in the genus Hypsibarbus : H. lagleri , H. pierrei , H. salweenensis , H. tenasserimensis , H. vernayi and H. wetmorei , also based on their morphological appearance, body proportions such as the number of scales . H. suvattii as a synonym of H. lagleri , H. malcolmi as a synonym of H. pierrei and H. tenasserimensis as a new species. The species H. birtwistlei and H. huguenini listed by Rainboth in the first description of the genus are now assigned to the genus Poropuntius .

The following species are currently included in the genus Hypsibarbus :

literature

  • Walter J. Rainboth: The Taxonomy, Systematics, and Zoogeography of Hypsibarbus, a New Genus of Large Barbs (Pisces, Cyprinidae) from the Rivers of Southeastern Asia. University of California Publications in Zoology, University of California Press, 1996, ISBN 978-0520098091

Notes and individual references

  1. ^ A b c d e f g Walter J. Rainboth, The Taxonomy, Systematics, and Zoogeography of Hypsibarbus, a New Genus of Large Barbs (Pisces, Cyprinidae) from the Rivers of Southeastern Asia. University of California Publications in Zoology, University of California Press, 1996, ISBN 978-0520098091
  2. ↑ a b c Surapop Suttiwises: Species Identification of Barbonymus gonionotus and 3 Hypsibarbus ssp. (Pisces: Cyprinidae) using PCR-RFLP of Cytochrome b Gene . Thesis Approval Graduate School, Kasetsart University, Thailand, 2006, Online ( Memento of the original from April 2, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 3.0 MB) @1@ 2Template: Webachiv / IABot / research.rdi.ku.ac.th
  3. ↑ J. Sunairattanaporn: Taxonomy of Thai fishes allocated in the genus Puntius Hamilton. 1822 (Pices: Cyprinidae). MS thesis, Kasetsart University, 2001
  4. ^ Fishbase: Scientific Names where Genus Equals Hypsibarbus
  5. ↑ Hypsibarbus on Fishbase.org (English)

Web links