Identification of Aspidoras

[Juan Felipe Z.]

Hello everyone!

Well, first let me say that I live in Brazil, and i have to use a translator to communicate. So, in advance, I apologize if write something wrong.

Have here two little Aspidoras . But I'm not absolutely sure of the species in question.

This exemplary possesses 4 cm in length, and resembles a Aspidoras Fuscoguttatus.




Since this, a Aspidoras sp. C118. Has 3 cm in length.








Both feed on blood worms, mosquito larvae, feed specialist for bottom fish, and feed on flakes.
Live at pH 6.4 at 27 º C. Health is very good (nor do I believe they are perfectly fine!) in a tank of 27 liters, with a filtering Atman HF-0300.

Confirmed as being A. Fuscoguttatus and A. C118?

[Birger]

Were they collected in a river...if so which river?

Birger

[Juan Felipe Z.]

Can not tell if it was collected, because bought them in some pet shop.
Bought them thinking it would Corydoras, but the salesman swore that are common plecos cubs (there is absolutely nothing like it. This is to show how the fishkeeping is difficult here in Brazil) ...
Arriving home I was noticing the differences. The small eyes not cheat that are Aspidoras.
But should possibly be collected in the Paraná river because this is the the river closest to where I live.

[Juan Felipe Z.]

Anyone?

[medaka]

HI Juan

The problem with some of the Aspidoras species is that they can vary quite a lot from specimen to specimen, and can make positive identification of some species difficult to say the least.

IMHO Photo one resembles to me, to be more like A rochai, than A fuscoguttatus.
Like wise your photo of the other Aspidoras as labeled by yourself as C118 have more of a resemblance to Aspidoras C36 or C119.
Saying that C118 is highly variable in colour patterning, including the fry from a spawning of two identical C118's.
Sometimes even knowing the catchment area can confuse the issue. I have seen in various stores here in the UK over the many years Aspidoras species for sale under the tag 'Aspidoras species Goias' these either turned out to be one of the following: A albater,A species C36, there are quite a few other Aspidoras species collected in the Goias region. I have even seen C118 & C119 as being Species Goias.Needless to say the Goias region is quiet a large area.

[Juan Felipe Z.]

Yeah Medaka, this identification is confusing.
I've been researching the differences between A. Fuscoguttatus and A. Rochai.
Could conclude that, at the caudal peduncle, A. Fuscoguttatus have balls and flat spots, while A. Rochai, has small balls, well rounded. This confirms?

Are right, the other Aspidoras is identical to C36. The pattern in a triangle is the same with the information about the site, however, is only one side of the body. On the other side the body, resembles a C119. Would be likely to be a hybrid?

[Juan Felipe Z.]

Guys, much anyone? I think it's the Aspidoras C037, But The drawings in the form of triangle is not beating well! I'm even suspicious of a hybrid ... Will?

[medaka]

HI Juan


IMHO I think your Aspidoras are closer to C036.

Without knowing from what source your Aspidoras originally came from it would be wrong to guess if they are hybrids or just 'sports' from their breeding. Like I said before there are a few Aspidoras species that are variable in themselves and which only adds to their identification confusion. Even with a Aspidoras species that is distinct in itself from other Aspidoras species questions are often raised as to their identity. As in the case of

Aspidoras pauciradiatus

this was originally described as a Corydoras species, however; this was changed later to be included into Aspidoras, yet, from time to time there is an argument raised that it is a Corydoras species and therefore it should be moved back into that genera.

[MatsP]

As in the case of

Aspidoras pauciradiatus

this was originally described as a Corydoras species, however; this was changed later to be included into Aspidoras, yet, from time to time there is an argument raised that it is a Corydoras species and therefore it should be moved back into that genera.

Part of this is perhaps the fact that some 15 or so years ago, someone decided that ALL Corydoradinae group fishes should be Corydoras. Markos Alexandrou will sort it out for us, once he gets the full set of papers published... ;)

--
Mats