| Trichomycteridae (Pencil or parasitic catfishes), subfamily: Tridentinae |
| 1.31 cm SL (male/unsexed) |
|
demersal; freshwater |
| South America: Amazon basin, Brazil. |
|
Dorsal soft rays (total): 6-7; Anal soft rays: 6-6; Vertebrae: 29-32. Distinguished by the latero-sensory system which is restricted to LL1 and LL2, the pectoral fin with two branched rays, the absence of pelvic fins and girdle, the reduced jaws and pharyngeal dentition, the presence of six to seven interopercular odontodes, the absence of a lateral series of spots, the presence of a small dark spot on the ventral surface of the mandibular symphysis, the narrow comma-shaped palatine, the absence of procurrent rays anterior to the dorsal and anal fins, the position of insertion of the first dorsal-fin pterygiophore and the presence of a single pair of pleural ribs (Ref. 91084). |
| Found in places with mud and roots of aquatic plants of a small stream, mainly composed of sandbanks (Ref. 116750). |
|
Least Concern (LC); Date assessed: 07 November 2018 Ref. (130435)
|
| harmless |
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