last time ScotCat visited the Plotoside family for
a factsheet was way back in March 2009 with a look
This month of April 2013 takes
us back again to this family and a look at the "Short
Finned Catfish" Neosilurus brevidorsalis.
If you looked
back at the P. rendahli factsheet you would
be forgiven in thinking that this is the same fish
asN. brevidorsalisbut as mentioned
in that factsheet the eye is much closer to the mouth
in the Porochilus genus and also larger as
can be seen in the bottom two images.
ater - with the smaller
eye in normal position relating to the snout
rendahli- with the
larger eye being closer to the mouth
in lakes, swamps and rivers, including turbid backwaters
and clear, flowing tributaries. Inhabits bottom of
warm, clear, flowing streams; also lives in billabongs
and flooded lagoons. Feeds on insects, prawns, mollusks
and small crayfish and reaches sexual maturity at
about 12 centimeters.
In the aquarium
they tend to be less inclined to like company as they
get older, and are very much a digger.Better
suited to larger tanks of 4ft (120cm) or over with
rocks and plants provided for cover. This genera are
easily spooked in the aquarium. Best kept in small
groups of 4-6 individuals. The pectoral and dorsal
spines, as is the norm in this genera, are venomous
so handle with care.
This species is
uncommon in Australia as it is found only in the far
north at the tip of the Cape York peninsula in Queensland
(see map) in the tributaries of the Jardine River
and in McDonnel Creek (Jackson River system). It is
more widespread in southern New Guinea. The specimens
pictured here were captured in Papua New Guinea (Timika).
In its natural habitat they feed on aquatic and terrestrial
insects, mollusc, shrimps and prawns.
Northern Australia at Cape York Peninsula and central-southern
New Guinea. Type locality's: Nicol
Bay, Cape York, Queensland, Australia. Inawe, St.
Joseph River, New Guinea. Sogeri, New Guinea.
Dark brown to grey overall,
sometimes almost black or mottled, and white underneath.
Care & Compatibility
Generally peaceful with other
As yet unknown.
There are no proven external
sexual differences, but females are probably more robust
in the body.
Tablet and pellet foods, also
frozen shrimp and worms but they do relish prawns.
Neo means "new" in latin and "silurus"
From 'silouros', a kind of river fish. Silurus,
sheetfish, catfish. According to
Lacepede (1803) this word indicates the rapidity with
which Silurus can move its tail. brevidorsalis: With short dorsal.
G.R., S.H. Midgley and M. Allen, 2002. Field
guide to the freshwater fishes of Australia. Western
Australian Museum, Perth, Western Australia. 394 p. Froese, R. and D. Pauly. Editors. 2011.
FishBase. World Wide Web electronic publication. www.fishbase.org,