Auchenipterichthys punctatus
is most similar in appearance to A.
longimanus,
which differs from A. punctatus primarily
in lacking distinct, dark spots covering the head
or body. Auchenipterichthys punctatus is
readily distinguished from its other two congeners,
A.
coracoideus and A. thoracatus,
which have coracoids that are covered ventrally only
by a thin layer of integument and appear to be exposed
to the surface, the anterior teeth on premaxilla are
visible in the closed mouth and, typically, eight
(rarely nine) branched pelvic-fin rays (Ferraris et.al.
2005). Remarks:
At the northernmost collecting site (altitude of about
150 m) along upper Rio Negro, the water was blackish,
over rocky bottoms. Stomach contents of four specimens
indicate a diet consisting mainly of insect nymphs
and adults. (Soares-Porto, L.M.1994).
South America: Upper Orinoco River and Upper Amazon River
basins, including the Negro River.
Size:
15.0cm. (6ins)
Temp:
23-25°c (73-77°f.)
p.H.
6.5-7.2.
Reference:
Ferraris, C.J. Jr.,
2007. Checklist of catfishes, recent and fossil (Osteichthyes:
Siluriformes), and catalogue of siluriform primary
types. Zootaxa 1418:1-628. Ferraris, C.J. Jr., Vari,
P. Richard and Raredon, J.Sandra; Catfishes
of the genus Auchenipterichthys (Osteichthyes: Siluriformes:
Auchenipteridae); a revisionary study. Neotropical
Ichthyology, 3(1):89-106, 2005. Soares-Porto, L.M. 1994 Auchenipterichthys
dantei, a new species of catfish from the Amazon Basin
(Siluriformes: Auchenipteridae). Ichthyol. Explor.
Freshwat. 5(3):281-287.
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