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1st time in this forum as cory's aren't really my thing but i saw some today labelled C.Olgae. Cat-e-log doesn't show anything which is a good match so i was a bit intrigued if anyone could enlighten me?

They were sort of a cross between cw011 & reynoldsi, & if that seems a bit unclear let me expand.

It is a long-nose species.fins clear. Body pale grey/brown. dark vertical stripe through the eye. Large dark spot in the centre of the body beneath & to the fore of the dorsal but not reaching up to the fin. This spot is not a solid spot but rather made up of many smaller irregular blobs most of which combine to form the larger spot.

3 specimens were in the tank, 1 at 1" & the other 2 3/4" - all similar in colour/pattern.

Any ideas anyone? (Ian?) They were £6.50 each so not really expensive - possibly hybrids?

Hi Richard,
Two things:
- neither CoF nor FB list a C. olgae. So either it doesn't exist or it's a brand new species
- Olga is a rather common Eastern-European name......probably the fish was named after someone's wife or girl friend
However, I dare not say it is a hybrid; that would be speculating.

I've seen "Olga" cories for sale locally that were actually Corydoras septentrionalis.

Cat-e-log shows hybrids do exist so it could be a possibility (?)

Cat-e-log photos of septentrionalis are quite varied but it is similar to the ones i've seen but the caudal was clear & the eye band distinct - not quite like cat-e-log photos, but who knows, regional variation or tank bred v wild could account for the differences. If i get a chance i'll pop back & get a photo but it won't be for about 10 days or so

Thanks for the opinions so far

http://www.planetcatfish.com/catelog/sp ... ies_id=392

Name(s)Olgae Cory, Olga Cory

The species C. sp "Olga" is becoming a bit of a problem, mainly because the name was only associated with either C. septentrionalis or C. simulatus, but more recently there has been a species exported from Colombia having this name, the fish itself is similar in colour pattern to C. aeneus but has a more elongated body.

Ian


Picture courtesy Corydoras world

Of the 3 specimens i saw the patterns were almost identical to each other.

Simulatus looks close but there seems to be an amount of variability between photos in cat-e-log. I couldn't be 100% certain but i suspect it to be a regional variation of this rather than anything else, but if i do get the opportunity to get a photo i'll post it

Thanks for the suggestions everyone

Richard B