Rio Japurá

[racoll]

Thanks HH. I guess this is a situation where you really need both materials in hand to compare. Not sure if there's enough evidence here to make this work chasing up.

[KungFish]

Any other photos of the denticetopsis and helogenes?

[racoll]

Here's a smaller

Helogenes

. Only other pictures of

Denticetopsis

are slightly more out-of-focus shots of the same fish.

[turtle lover]

Cetopsis coecutiens

(channel of main river)

DSC07289.JPG

Cetopsis oliveirai

(channel of main river)

DSC06988.JPG

Leptodoras copei

or Leptodoras cf. copei (channel of main river)

DSC06834.JPG

The whale catfish or candiru acu reminds me of River Monsters.