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Auchenoglanis
biscutatus (Geoffroy Saint-Hilaire, 1809)
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Image
contributors to this species: |
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ScotCat
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Other
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Relevant Information: |
Teugels et al. (1991) considered
the genus Auchenoglanis to be comprised of two valid
species: A. biscutatus and A. occidentalis..
Due to the work carried out recently (2010) by Michael
Retzer there are now 8 in this genus with six new species, A.
acuticeps, A. biscutatus, A.
occidentalis, A. sacchii, A.
senegali, A. tanganicanus, A.
tchadiensis and A.
wittei. The main description for A. biscutatus
is that the body and adipose fin in adults is either light brown
or grey with small, distinct spots on the rayed fins that do
not form bands. The shape of the nuchal plate is also distinctive
from all other congeners in the genera. Commonly occurs in running
water, lakes and submerged vegetation in the Sudd, rare in fringing
vegetation. Feeds on the bottom on mud, debris, insects, notably
chironomid larvae and mollusks. Gravid fish are recorded throughout
the year with a peak in the dry season. The species depicted
in the thumbnail image was originally thought to be a a juvenile
of A. occidentalis. |
Common
Name: |
None |
Synonyms: |
Pimelodus biscutatus, Auchenaspis
biscutatus |
Family: |
Claroteidae |
Distribution: |
Africa: Rivers
Nile, Niger, Senegal, Lake Chad Basin and Gambia basin. |
Size: |
54cm. (17½ins) |
Temp: |
24-26°C (75-79°F) |
p.H. |
7.0-8.0. |
Reference: |
Retzer E. Michael;
Taxonomy of Auchenoglanis Günther 1865 (Siluriformes: Auchenoglanididae)
Zootaxa 2655: 25–51 (2010).
Bailey, R.G. 1994 Guide to the fishes of the
River Nile in the Republic of the Sudan. J. Nat. Hist. 28:937-970.
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