O reexame dos síntipos do enigmático Trichomycterus venulosus, descrito do Páramo de Cruz Verde, Cordilheira Oriental da Colômbia, nos permitiram avaliar o seu status taxonômico atual. Demonstra-se que esta espécie nominal constitui um sinônimo júnior de Eremophilus mutisii, e, portanto, não representa um caso de extinção de um peixe endêmico da Colômbia, como atualmente é aceito.
| Characters | Trichomycterus venulosus | Eremophilus mutisii | Trichomycterus sp. A (Páramo de Cruz Verde) |
|---|---|---|---|
| Premaxilla shape | Anterior margin extending more laterally than posterior margin, forming a conspicuous pointed lateral projection. Lateral margin slightly concave | Anterior margin extending more laterally than posterior margin | Anterior margin not extending more laterally than posterior margin. Lateral margin convex. Second and third teeth rows extending slightly more laterally than anterior and posterior rows |
| Premaxilla relative length | Similar to maxilla | Premaxilla equal or slightly shorter than maxilla | Longer than maxilla |
| Autopalatine | Posterolateral process extending posteriorly to anguloarticular articulation with quadrate | Posterolateral process extending posteriorly to anguloarticular articulation with quadrate. Lateral margin slightly convex | Posterolateral process forming a conspicuous angle with the lateral margin |
| Branchiostegal rays | 8 | 7-8 | 6-7 |
| Pectoral-fin rays | 8 | 8 | 8-9 |
| Precaudal vertebrae | 17 | 17-18 | 9-13 |
| Caudal vertebrae | 25 | 25 | 27-32 |
| Ribs | 18 | 16-18 | 14-18 |
| First hemal spine | Vertebra 19 | Vertebra 19 | Vertebrae 16-19 |
| Dorsal-fin rays | 13 | 13-14 | 11-13 |
| Dorsal-fin basal radials | 10 | 10 | 8 |
| Dorsal-fin insertion | Vertebrae 21-27 | Vertebrae 21-27 | Vertebrae 18-23; 18-24; 19-24 |
| Anal-fin rays | 11 | 11 | 11-12 |
| Anal-fin basal radials | 8 | 8 | 6-7 |
| Anal-fin insertion | Vertebrae 25-31 | Vertebrae 25-31 | Vertebrae 22-26; 23-27; 23-28; 24-28 |
| Neural spine of compound caudal vertebra | Complete, ca. 1/3 of adjacent neural spine height | Complete, 1/3-1/2 of adjacent neural spine height | Complete, with a short rounded tip, and base having conspicuous broad anterior and posterior apophysis |
| Dorsal procurrent caudal-fin rays | 13 | 13-16 | 16-21 |
| Dorsal procurrent rays origin | Vertebra 6 | Vertebrae 6-8 | Vertebrae 7-10 |
| Ventral procurrent caudal-fin rays | 12 | 12-15 | 14-17 |
| Ventral procurrent rays origin | Vertebra 6 | Vertebrae 6-8 | Vertebrae 8-10 |
| Caudal skeleton | PH+1+2, 3, 4+5 | PH+1+2, 3, 4+5 | PH+1+2, 3+4+5 |
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