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Hybridfish7

Hybridfish7

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Dec 4, 2017
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Sold as amatitlania myrnae, the ones descended from the Rio Estrella ones Matt Chambers brought in, though they kinda look a bit septemfasciata esque. I don't doubt they're myrnae, or I mean I kinda do because the female has a sky blue belly, whatever they are they are gorgeous, huge, and I love them.
Male is pushing 5.5".

Snapchat-1718335613_exported_1307.jpg

Snapchat-596484652_exported_4231.jpg
 
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Rio Estrella is just Southeast of Limon, which is allegedly the farthest east septemfasciata occurs before myrnae start to occur. Could the Rio Estrellas have been mistaken for myrnae going off the basis that they were caught where septemfasciata weren't supposed to be/myrnae were?
 
Hybridfish7 said:
Rio Estrella is just Southeast of Limon, which is allegedly the farthest east septemfasciata occurs before myrnae start to occur. Could the Rio Estrellas have been mistaken for myrnae going off the basis that they were caught where septemfasciata weren't supposed to be/myrnae were?
Click to expand...
When I picked up my myrnae at a fish auction, they were labeled as septemfasciata.
As they grew, it became obvious they were myrnae.
Happens all the time, aquarists think they have one species (because it was sold as such) but the reality is often quite different.
Many Geophagines, and Vieja are prime examples but ...,
I've seen LFSs label even common cichlids like JDs erroneously, .
 
duanes said:
When I picked up my myrnae at a fish auction, they were labeled as septemfasciata.
As they grew, it became obvious they were myrnae.
Happens all the time, aquarists think they have one species (because it was sold as such) but the reality is often quite different.
Many Geophagines, and Vieja are prime examples but ...,
I've seen LFSs label even common cichlids like JDs erroneously, .
Click to expand...
Would you then say I'm in the clear to refer to mine as Septemfasciata from here on?
 
Kevin at tuic confirmed, they are in fact septemfasciata. I guess Rio Estrella can now be considered the furthest south/east that septemfasciata is/was collected.
 
According to the Cichlid Room Companion
myrnae differs from septemfasciatta
1) by the presence in both sexes of parallel rows of metallic yellow dots in the lower half of the flanks
2) the absence of complete dark bars on the flanks in both living and preserved specimens
3) the presence of small iridescent blue dots in the soft dorsal and median zone of the caudal
4) the presence in the female of a trapazoidal dusky zone extending to the ventral fins upward one scale row above to a point the pectoral fin origen and rearward to the posterior spot and downwards to a point just above the fin origen

with that, its piece of cake to ID right?
 
Indeed it is. Kevin also says vertical bars are exclusive to septemfasciata, which these guys have in their breeding dress.
However he also mentioned that Jeff Rapps had actual Rio Estrella myrnae, so perhaps they occur sympatrically.
 
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