Enteromius

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Enteromius
Angola barbs (Enteromius fasciolatus)

Angola barbs ( Enteromius fasciolatus )

Systematics
without rank: Otophysa
Order : Carp-like (Cypriniformes)
Subordination : Carp fish-like (Cyprinoidei)
Family : Carp fish (Cyprinidae)
Subfamily : Smiliogastrinae
Genre : Enteromius
Scientific name
Enteromius
Cope , 1867

Enteromius is a species-rich genus of small carp fish that occurs in tropical Africa. The species of the genus were originallyassigned to Barbus .

Features and systematics

As early as 1911 , the Belgian-British zoologist George Albert Boulenger was able to differentiate between two distinctly different groups among the African, sub-Saharan barbels . One consists of species that are usually less than 20 cm in length, have a terminal mouth, have between six and eight (rarely nine) branched fin rays in the dorsal fin, and in which the scales are sculpted radially (starting from one point). In the second group, the animals usually reach lengths of over 20 cm, often have a lower mouth, between eight and eleven branched fin rays in the dorsal fin and their scales are in most cases sculptured parallel. With the advent of modern molecular biological methods, it is also established that the small African barbels examined have a double set of chromosomes ( diploidy ), while the large African barbels are hexaploid and Barbus is tetraploid.

In a revision of the carp fish subfamily Cyprininae published in February 2015, all sub-Saharan barb species originally assigned to barbus were therefore removed from this genus and the large, hexaploid fish were placed in the genus Labeobarbus . Enteromius was the oldest name available for the small, diploid species of barbels . The genus was introduced in 1867 with the description of Enteromius potamogalis by the American paleontologist and ichthyologist Edward Drinker Cope .

But Enteromius is probably not monophyletic either . Five clades can be distinguished within the diploid African barbel. The genus Clypheobarbus lies within an Enteromius clade. Enteromius hulstaerti is the sister species of the genus Barboides , which only includes two very small species. Sister genus of all diploid African barbel ( Barboides , Clypheobarbus , Enteromius ) and of Pseudobarbus is the Asian barbel genus Systomus . Together with this and other barbel genera occurring in tropical Asia (e.g. Puntius ), Enteromius forms the tribe Smiliogastrini within the carp fish subfamily Cyprininae . Not all ichthyologists recognize the Enteromius genus .

species

Enteromius anoplus
Enteromius cadenati
Enteromius callipterus
Enteromius catenarius
Enteromius guineensis
Enteromius holotaenia
Enteromius jae , males and females
Enteromius mattozi
Enteromius niokoloensis
Enteromius paludinosus
Enteromius poechii
Enteromius trimaculatus
Enteromius trispilos
Enteromius viviparus

In addition to those described so far, there are also numerous undescribed and sometimes cryptic species .

swell

  1. ^ Boulenger GA. 1911a. Catalog of the fresh-water fishes of Africa in the British Museum (Natural History) , Vol. II. London: Printed by order of the Trustees.
  2. ↑ a b Emmanuel JWMN Vreven, Tobias Musschoot, Jos Snoeks & Ulrich K. Schliewen: The African hexaploid Torini (Cypriniformes: Cyprinidae): review of a tumultuous history. Zoological Journal of the Linnean Society, Jan. 2016, DOI: 10.1111 / zoj.12366
  3. ↑ a b c Lei Yanga, Tetsuya Sado, M. Vincent Hirt, Emmanuel Pasco-Viel, M. Arunachalam, Junbing Li, Xuzhen Wang, Jörg Freyhof, Kenji Saitoh, Andrew M. Simons, Masaki Miya, Shunping He, Richard L. Mayden (2015): Phylogeny and Polyploidy: Resolving the Classification of Cyprinine Fishes (Teleostei: Cypriniformes). Molecular Phylogenetics and Evolution, February 2015, doi: 10.1016 / j.ympev.2015.01.014
  4. ^ Cope, ED 1867. Supplement on some new species of American and African fishes. Transactions of the American Philosophical Society, (New Series) 13 (3) (art. 13): 400-407.
  5. ↑ Ren, Q. & Mayden, RL (2016): Molecular phylogeny and biogeography of African diploid barbs, 'Barbus', and allies in Africa and Asia (Teleostei: Cypriniformes). Zoologica Scripta, 20 MAR 2016. DOI: 10.1111 / zsc.12177
  6. ↑ Van Ginneken, M., Decru, E., Verheyen, E. & Snoeks, J. (2017): Morphometry and DNA barcoding reveal cryptic diversity in the genus Enteromius (Cypriniformes: Cyprinidae) from the Congo basin, Africa. Molecular Ecology, 310: 1-32. DOI: 10.5852 / ejt.2017.310

Web links

Commons : Enteromius  - collection of images, videos and audio files