New photos of Bagarius and tigrinus

[changyikhuan]

not bad, i like the tank, nice sand and plants

 

[fugupuff]

looks to me like a bagarius bagarius which looks like yarelli, but with less mottling and spots on the body and cleaner look. doesn't grow as big

100% not suchus, which is a very compressed fish, almost completely flat.

rutilus is a possibility, but usually have larger eyes, and very orange fins on bottom

there is probably one more specie out there that's not described yet...

 

[venmus93]

looks to me like a bagarius bagarius which looks like yarelli, but with less mottling and spots on the body and cleaner look. doesn't grow as big

100% not suchus, which is a very compressed fish, almost completely flat.

rutilus is a possibility, but usually have larger eyes, and very orange fins on bottom

there is probably one more specie out there that's not described yet...

Cool information....thanks. I wonder if there is a way to differentiate the two species at this size (maybe dorsal ray counts or vertebrae count)? Does bagarius have the strongly keratinized head scales that rutilus has? I guess I could keep it for a decade and see if it grows larger than a bagarius!
If you come up with anything else that could help, let me know. Thanks again for the time.

Charlie

 

[venmus93]

One thing I found on Fishbase, was that the adipose fin origin is behind the anal fin origin in bagarius....in rutilus, the adipose fin origin is in front or above the anal fin.
By that desciption, I would lean toward rutilus. Here's a photo (not a very good one, sorry) that shows the adipose fin in relation to the anal fin. The reference that Fishbase uses is this: Kottelat, M. 1998 Fishes of the Nam Theun and Xe Bangfai basins, Laos, with diagnoses of twenty-two new species (Teleostei: Cyprinidae, Balitoridae, Cobitidae, Coiidae and Odontobutidae). Ichthyol. Explor. Freshwat. 9(1):1-128.