I do love the Synodontis genera and
have for many years I couldn't help but compile another
factsheet on them and a real beauty to boot in the
"Long-Nosed Synodontis" S. longirostris.
Not a colourful species but none the less an impressive
looking Synodontis when in good condition.
I spied a group of them in a large tank in Pier Aquatics,
the premier aquatic outlet in Wigan northern England,
and a haven for us catfish aficionados. I couldn't
take any of them home as tank space was at a premium
and with a stated SL of 50cm (20ins) it was definitely
a no no.
This is one of
the easier species of Synodontis to identify
with the spotted body and the long down turned mouth.
The SL size of 50cm (20ins) may not be obtainable
in the home aquarium as it is in its natural habitat
but nonetheless it is a fairly large species and would
need a sizeable tank to house them.
& mouth view showing the tooth plates
of humeral process
of the tooth plates
The above two
images show the shape of the humeral process and the
tooth plate of S. longirostris.
basin. Type locality: Rivière
Yembe à Banzyville.
Small eyes. Small and low adipose
fin. A long, conical, prominent snout. Small and supero-lateral,
1.7 (1.7 to 3.6) time in interorbital space that is
flat. Humeral process is triangular or subtriangular,
the tip is generally
obtuse or sometimes truncated, granular and without
Crest, 2.2 (1.8 to 2.9) times as long as high.
Light grey to brown/olive,
fully dotted with black spots. quite large and rounded,
smaller on the head. Underbelly largely clear with
only a few spots scattered here and there. All the
fins dotted with black spots.
Care & Compatibility
Can be a little territorial
as most Synodontis will be but no problems
in a large aquarium. Provide hiding places to decrease
any territorial aggressions. Any larger Characins
and peaceful Cichlids.
but they pair of to breed in
their natural habitat.
It is likely that the sexes
can be externally differentiated by females having a
proportionately wider and deeper body than the males.
There may also be differences in the vent area.
Will take most prepared aquarium
foods such as frozen bloodworm, whiteworm, shrimp,
prawns, insect larvae, tablet food, a good quality
flake food and pellets. A wide varied diet will provide
a healthy specimen for many years. They
prefer to feed from the bottom hence their downturned
finlike projection without rays, behind the rayed dorsal
fin. Caudal fin: The tail. Humeral process:Bony
extension of the pectoral girdle. Truncate:
Cut off, blunt. (as in squared off caudal fin).
Syn = together; odontis = teeth
(fused tooth plates). longirostris: Long snout.
C.M. and D.E. Rosen, 1966. Modes of reproduction
in fishes. T.F.H. Publications, Neptune City, New Jersey.
941 p. Poll,
M., 1971. Révision
des Synodontis africains (famille Mochocidae). Ann.
Mus. R. Afr. Centr., Sci. Zool., 191:1-497. Seegers, L. 2008 The catfishes of Africa.
A handbook for identification and maintenance. Aqualog
Verlag A.C.S. GmbH, Germany. 604 p.