Hi all,
What is the black fish at the bottom of the pics on here?
It's a cyprinid, Tampichthys ipni (formerly Dionda ipni). These are males in breeding condition, usually they are not that spectacular (see female here).
Where were the different H. pantostictus collected?
Most of them were collected in the triangle roughly spanning between Tamazunchale, Molango, and Huejutla.
Can I ask where the T.maculipinnis was caught in the picture?
It was collected in a small stream between Catemaco and Acayucan along with the red "C." salvini.
Cheers, m