Lamontichthys sp. Colombia

[Erlend D Bertelsen]

Hi.

I did receive this nice fishes on a shipment from Colombia. Almost 100 fishes! All are doing very well, in contrast to Lamontichthys filamentosus that I do import from Peru. I find them hard to maintain in the long run.

According to; De Carvalho Paixão & Toledo-Piza 2009 paper Lamontichthys llanero are the only fish with Lamontichthys filamentosus that have a extended filament in the dorsal fin. I cant see that filament inn this fishes, and yes, I know that they can disappear under transport. But I have imported the same fishes from Colombia some moths ago, and non of them have this ether. I find it also hard to compere the shape of the upper jaw, when I cant compere L.filamentosus with L.llanero.

So my question is. What specie do you think this is? I think this most probably is Lamontichthys llanero, but I am not sure.

E

[ridout]

I too would like to have this fish confirmed as L.llanero.
I have a trio of the fish in question and are looking to get more.
If you can help Erlend D Bertelsen or anyone else, in what to look for when sexing these fish would be fantastic.
The dorsal fin on my fish do have a slight extension on them and the tail filaments are about 4 inches in length
I can add pics if needed.

Ridout

Apologies if i have hijacked your thread Erlend D Bertelsen (Mods move this if you feel the need)

[The.Dark.One]

Hard to tell for sure just using these pictures but if they are of Colombian origin, and based on the visual characters I can see then I would go for L. maracaibero.

[Shane]

Lamontichthys llanero

and yes they are very hard to keep alive. They are always found clinging to driftwood in area of rivers and creeks with a strong current.

Good thread here.
http://www.planetcatfish.com/forum/view ... ys+llanero
-Shane

[Norman]

Hi Erlend,

Your Lamontichthys specimen are definately L. llanero.
Mostly the dorsal fin is not filamentous extended.

The species L. llanero has a broad distribution (http://www.loricariinae.com/L_llanero.htm).
It reaches from Venezuela Llanos to Colombia.
Sometimes the type from Colombia is called L. sp."Colombia", because of its markable pattern behind the dorsal fin. But after prooving and comparing with L. llanero it's a fact that the differences to L. llanero are very small.

The problem is, that they need a lot of herbivor food.
After import its hard getting them to feed. And if they need a lot of food but don't feed it's sure that they will die.
Natural yoghurt, a lot of crushed herbivor pellets and a lot of water change for a duration of min 2 weeks will help getting them to good condition.

@ Ridout:
Sexing is more or less easy by having a look for the thickness of the spine of the pectoral fins.
Females have thin spines. Spines of males are thick and covered with small odontodes.
Next to this you can have a look to the genital papilla, but that is hard to explain, so you should go with having a look for the pectoral spines.

so long
Norman

[Shane]

Norman (Norrie),
Not to go off topic, but I was just looking around your site and discussing it with Jools (who is standing next to me drinking MY coke). Beautiful and wonderful!
-Shane

[Norman]

Hi Shane (and of course Jools),

Thanks a lot! I do my best.

Have a nice time!

cheers
Norrie ;)

[pleco_breeder]

There is also a difference in the scutes between the sexes.

Larry

[Erlend D Bertelsen]

Thanks Jools and Norman.

I keep 6 or 7 of them in my own aquarium, a big tank with a lot of current. They have been doing well for almost 6 months.

In the store I keep them also in big tanks, and it seems that they also are doing well.

E