| Family: |
Heptapteridae (Three-barbeled catfishes) |
| Max. size: |
12.79 cm SL (male/unsexed) |
| Environment: |
demersal; freshwater |
| Distribution: |
South America: Brazil. |
| Diagnosis: |
Dorsal spines (total): 2-2; Dorsal soft rays (total): 6-6; Anal soft rays: 7-8; Vertebrae: 41-42. This species is distinguished by the following set of characters: long maxillary barbel, reaching at least the anal-fin terminus when parallel to main body axis; supraoccipital process reaching the anterior nuchal plate; robust dorsal-fin spine, bearing small, straight spinules along three-fourths of its posterior margin; 41–42 (rarely 43 or 44) total vertebrae; body slightly darkened, dorsal fin with light brown stripe near its origin, followed by a hyaline stripe, and distal half dark and by the dorsal lamina of the Weberian apparatus reaching the ventral margin of the supraoccipital process only at its first third; preoperculomandibular laterosensory canal openings at dentary not particularly large; brown midlateral stripe wide and dorsal lamina of the Weberian apparatus reaching the ventral margin of the supraoccipital process only at its first third; posterior margin of pectoral-fin spine bearing 13-23 large, retrorse blades along basal two-thirds; adipose fin 2.5 to 3.0 times in SL; epiphyseal branch of supraorbital canal on the head (S6) emerging as a single pore (Ref. 132465). |
| Biology: |
The species inhabits shallow, moderately flowing waters with sandy substrate. They are observed to be abundant during the rainy season and is easy to catch at night (Ref. 132465). |
| IUCN Red List Status: |
Not Evaluated (N.E.) Ref. (130435)
|
| Threat to humans: |
harmless |
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