Unknown Heptaterid (Pimelodella species ?)
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Unknown Heptaterid (Pimelodella species ?)
Hi all,
i just bought this Heptaterid (or Pimelodid) from a local dealer. Unfortunatly i don't even know the country it was imported from. Standart length is 6,5 cm, the whole fish is 8 cm in length.
I guess it is a Pimelodella (or Brachyrhamdia, if one considers that genus valid) species. Does anyone know which ?
Pictures:
Pic 1
Pic 2
thanks,
Achim
i just bought this Heptaterid (or Pimelodid) from a local dealer. Unfortunatly i don't even know the country it was imported from. Standart length is 6,5 cm, the whole fish is 8 cm in length.
I guess it is a Pimelodella (or Brachyrhamdia, if one considers that genus valid) species. Does anyone know which ?
Pictures:
Pic 1
Pic 2
thanks,
Achim
Last edited by Achim on 11 Jan 2003, 15:10, edited 1 time in total.
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Right, it looks to be <i>Brachyrhamdia meesi</i>. Only the strange thing is that it seems to be completely lacking the dark markings (save for a very small caudal peduncle spot). Are there many others like it? This could be interesting...
Heok Hee
Heok Hee
Last edited by Silurus on 11 Jan 2003, 15:27, edited 1 time in total.
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Hi Coelanth,
i don't think its P. meesi. One could think its a very pale or frightened meesi, but even without flashlight and in a dark tank the fish shows no sign of a lateral stripe or the big shoulder spot (i just bought this fish today, but could take a look at it for some months at the dealer) that is typical for B. meesi.
Achim
i don't think its P. meesi. One could think its a very pale or frightened meesi, but even without flashlight and in a dark tank the fish shows no sign of a lateral stripe or the big shoulder spot (i just bought this fish today, but could take a look at it for some months at the dealer) that is typical for B. meesi.
Achim
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That's a real pity. Because it can either be an aberrant <i>B. meesi</i> that just lacks the dark color, or possibly an undescribed <i>Brachyrhamdia</i>. The only way to know for sure is if we had lots of similar fish (which would make it unlikely that this lack of dark color is a chance mutation).
Heok Hee
Heok Hee
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i just made another photo, this time without flash in the keeping tank .
After looking at some more Brachyrhamdia (i thought the genus was placed in the synonymy of Pimelodella ?) meesi i begin to think you may be right saying this is just a strangely coloured B. meesi. Really a pitty there aren't any more...
Btw: could you or someone else tell me the paper where the Pimelodidae where split in Pseudopimelodidae, Pimelodidae and Heptapteridae ?
Thanks for ur quick response to my mail Heok
Greetings... Achim.
After looking at some more Brachyrhamdia (i thought the genus was placed in the synonymy of Pimelodella ?) meesi i begin to think you may be right saying this is just a strangely coloured B. meesi. Really a pitty there aren't any more...
Btw: could you or someone else tell me the paper where the Pimelodidae where split in Pseudopimelodidae, Pimelodidae and Heptapteridae ?
Thanks for ur quick response to my mail Heok
Greetings... Achim.
Last edited by Achim on 11 Jan 2003, 16:12, edited 3 times in total.
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Aha! Now it looks more like a regular <i>B. meesi</i>. I think it will revert back to the original coloration over time (I bought some juvenile <i>B. meesi</i> thinking they were one of the striped <i>Pimelodella</i> once, so the color pattern can change quite a bit).
Anyway, <i>Brachyrhamdia</i> is a valid genus. according to Lundberg & McDade (1986).
The original reference that divides the Pimelodidae into the three was de Pinna's Ph. D. dissertation (1993). There has never been any publication after that states the division formally, AFAIK. Most subsequent workers just agreed with Mario.
In any case, I think the correct name for the Heptapteridae is the Rhamdiidae.
Heok Hee
Anyway, <i>Brachyrhamdia</i> is a valid genus. according to Lundberg & McDade (1986).
The original reference that divides the Pimelodidae into the three was de Pinna's Ph. D. dissertation (1993). There has never been any publication after that states the division formally, AFAIK. Most subsequent workers just agreed with Mario.
In any case, I think the correct name for the Heptapteridae is the Rhamdiidae.
Heok Hee
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thanks for the info.
...and another photo with flash. Looks different again i think.
Achim
This explains why i couldn't find it...The original reference that divides the Pimelodidae into the three was de Pinna's Ph. D. dissertation (1993).
why ? older name ?I think the correct name for the Heptapteridae is the Rhamdiidae
...and another photo with flash. Looks different again i think.
Achim
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Hi all,
thanks to CLOFFSCA and a hint of Ingo Seidel to check that species i was able to identify this Brachyrhamdia. See here
Achim
thanks to CLOFFSCA and a hint of Ingo Seidel to check that species i was able to identify this Brachyrhamdia. See here
Achim