Chaca serica ?

[Hendra]

Found in a blackwater stream, middle barito river area.

Adult:


Sub-adult:




Habitat:

[Hendra]

Another pics:

In habitat:

[CatfishPownage63]

the first pic looks like a chaca burmensis but all the other pics look like chaca bankanensis

[Silurus]

What I can see of the lower lip in the last picture suggests C. bankanensis.

[Hendra]

Each fishes above found in different stream, but the distance of each point is quite close each other.
Is it possible if there is 2 species live in this area?

Here the pic of head of the adult, sub-adult Chaca (1st post),and fish at 2nd post, sorry about the quality.

[CatfishPownage63]

now these pics look more like chaca serica

[Silurus]

The pictures are not clear enough for me to determine one way or another. It might be easier to wait until the fish opens its mouth before taking a picture of the frontal view (in the manner of the last picture in the second post).

[Hendra]

Too bad, I did'nt keep any of this species, still not ready to keep fishes. But, fishes at first post already preserved by Bu Reny Hadiaty, meanwhile fish at 2nd post I released to stream directly after taking some pics.