| Scientific Name | Country | Locality | Date taken | Picture |
|---|---|---|---|---|
| Atherinella schultzi | Mexico | Coatzacoalcos River, Oaxaca | Atsch_u1.jpg | |
| Dactyloscopus amnis | Mexico | Oaxaca | Daamn_u0.jpg | |
| Vieja guttulata | Mexico | Oaxaca | Pagut_u1.jpg | |
| Profundulus oaxacae | Mexico | Atoyac River basin | Proax_u1.jpg | |
| Profundulus oaxacae | Mexico | Atoyac River basin | Proax_u0.jpg | |
| Thorichthys callolepis | Mexico | Coatzacoalcos River, Oaxaca | Thcal_u1.jpg | |
| Xiphophorus clemenciae | Mexico | Coatzacoalcos River, Oaxaca | Xicle_f0.jpg |