Larry, L056 Parancistrus aurantiacus Xanto is not an albino form, same yellow specimen can change from yellow to totally black or reverse to yellow. The offspring is not yellow, they are dark brown or black. Not all change the color at breeding season, both black and yellow forms are breeding. Only ...

For me they are still L66 and nothing else, pattern differ a little between localities but it's not uncommon with this pattern among L66, the first adult introduced was mostly this kind of pattern.

Janne

L309 without any doubts, there are only 1 species of pleco from Brazil looking like this. L309 is little variable, smaller size much nicer than larger.

Janne

The only way I have succeed to cure bloated plecos is to isolate the specie in their own tank, high temp. 29-30C with good circulation, add 750mg-1g (1,5-2 tablets) Metronidazole + salt 30-50mg/100L water day 1, day two Metronidazole 500mg (1 tablet) and then I do nothing, no feeding until the stoma...

So I assumed these are specimen selected from a batch of regular L007 based on their "unique" juvenile marking and expect them to grow up looking like any regular L007.

Yes, they will look like normal adults and lose this nice pattern.

Janne

Picture 1 and 2 normal color and pic 3-4 stress color, some have very nice pattern as youth. One exporter in Brazil offered these as "new Leporacanthicus cf. galaxias Tocantins" to customers and used that name in the documents... IBAMA confiscated these boxes :) even that it's allowed if u...

No hybrid, L66 from the lower xingu at Belo Monte.

Janne

L199, the eyes is to big to be L129.

Janne

L007 in stress color.

Janne

We do get one or two plecos from Tocantins sometimes that look identical at smaller size (10-12cm) with the one we export as L163 from Xingu. I don't know if the location is wrong for L163 (Rio do Para) because from this part no plecos have been exported for around 2 years and before that I did not ...

L411 youngsters should have a much more irregular pattern, these have a pattern more similar to L129 but it's not this species, they are more similar to L316 compared to adult pattern... 3cm at this size they should have a totally different pattern if they was L316? let wait and see how they develop...

Type 1 = L147 male.
Type 2 = not L075, more similar to L163 but still very young.

Janne

They are probably the same species, there are 3 distinct different "pattern" within P. auranthiacus and they do come from different localities in the same river system. When they reach the stores abroad they are mixed because they are sold as one species doesn't matter if it's different su...

This is very close to what I think about the situation of Xingu-Hypancistrus. In my opinion, L 236, L 173, L 287, L 345, L 399/400 and many other Hypancistrus without L-Numbers (all the Belo Monte stuff) are different kinds of transition forms between the common "species" like L 46, L 66,...

Are these totally deviant markings a sign for a species, or for an aberration? What do you think. Aberration, like it's for several other L-numbers of Hypancistrus from Xingu. But L236 is more related to L333 then it's to L66 which are the 2 main species in this complex of "species", thes...

The second link shows a stubby species and not elongated even if it looks like a flatter/thinner species in these pictures, have a look on the shape of the head, it's a little thin over the body in these pictures but it will be fatter and stubbier after some meals. L287 don't exist as a separate spe...

The picture in the link to Datz also show an L236 ;) taken from a little different angle, L236 is not a flat and elongated species... it's much more similar to L333 than it's to L66.

Janne

Have a look on the original picture of L236 and you will see that the body shape is not elongated, slim or longish in this species. Most pictures showed as L236 is not this species, they belong to the L173-L399-L400 and lower xingu group of Hypancistrus, but your´s are close enough to be the real L2...

It looks like a Tapajos species and not from Xingu, it may well be the "Golden line" which are from Rio Teles Pires. Some pictures in a tank after they have settled in so they show correct color will help.

Janne

Birger's fish is L401 just like Larry's fish is L401, same answer today Larry as the first time, second time, third time... ;)

jac,
The body shape and head shape is very similar L333 but they do have a little smaller eyes (L401).

Janne

The second species, it cannot be C. agassizii and I have been suggested it could be C. ambiacus, but this species is from Rio Purus and not from a river in Peru. Anyone that can confirm if it's C156 that are from Rio Purus?

Janne

I think it's not L333, for me your fish is 99% L401 and should not be mixed with real L333.

Janne

Mats meant in the middle of the dry season, September to beginning of December is the best time for diving and catch fish in Rio Xingu. You do need a license to catch fish even if you put it back direct after catching, there are always fishermen in the area that can work as a guide and that have a l...

The second species we received as C. punctatus don't fit C. agassizii, maybe it can be C156 which also are from Rio Purus??

Janne

Rio Yamunda or Nhamunda is flowing from north to south into Rio Amazonas on the border between the states of Para and Amazonas, and have many interesting species of fish... probably Hypancistrus species too. No commercial fishing of plecos for the ornamental trade but famous for the very nice Discus...

Compare with this typical patterned L333


I think your fish could be L401 or L66.

Janne

These I received mixed with C. schwartzi, can this be small CW28? size around 2,5-3cm TL and they are from Rio Purus. CW28_small_schwartzi_001.jpg This should be C. schwartzi which they was mixed in with. C_schwartzi_001.jpg And then I received some that was called for C. contactus which I thought c...

L081 are from the lower Xingu at Porto de Moz, right? The study didn't sample that far downriver, but it's strange they didn't mention this L number, or discuss the possibility of unsampled populations and intraspecific variation. L081 is much more widely spread in Xingu, lower Xingu, Altamira and ...

My opinion is that L173 is merely a natural variation of H. zebra. I think the fact that similarly marked fish occasionally show up in H. zebra spawns is good supporting evidence for my opinion. I don't agree with this, there will not occur any brown eyes H. zebra fry from 2 H. zebra but the patter...

All L260, like most of the Hypancistrus species can vary in ground colour, has not so much to do with their diet more about the water qualities and their conditions. No mistakes with L411 or any other species, they are pure L260 without doubts, Yes there are 2 kinds of L260, I've seen both side by s...