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Nemuroglanis furcatus Ribeiro, Pedroza & Rapp Py-Daniel, 2011 |
| Family: | Heptapteridae (Three-barbeled catfishes) | |||
| Max. size: | 4.67 cm (male/unsexed) | |||
| Environment: | demersal; freshwater | |||
| Distribution: | South America: streams in the middle and upper portions of the rio Guariba, Rio Madeira basin in Brazil. | |||
| Diagnosis: | Nemuroglanis furcatus is distinguished from all congeners by the possession of a long lateral line, reaching middle portion of the adipose-fin base (vs. lateral line extending slightly beyond dorsal-fin base origin); narrow posterior cranial fontanel in adult specimens, 16 to 27% of its length (vs. greater than 40% of its length); and pointed contour of the anterior border of the pectoral bridge (vs. rounded contour). The new species differs further from N. lanceolatus and N. pauciradiatus by possessing a forked caudal fin (vs. lanceolate); the ventral caudalfin lobe with six branched rays (vs. three or four rays); the dorsal caudal plate supporting eight rays (vs. six rays); and seven pairs of pleural ribs (vs. five or six). In addition, it is distinguished from N. mariai by having fewer anal fin rays (12–14, mode = 13, vs. 13–15) and vertebrae (41 vs. 42–44); and by possessing more branched pectoral-fin rays (seven, rarely six vs. six, rarely seven) (Ref. 86655). | |||
| Biology: | ||||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 07 November 2018 Ref. (130435) | |||
| Threat to humans: | harmless | |||