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Hyphessobrycon nigricinctus Zarske & Géry, 2004 |
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photo by
Hoffmann, P. and M. Hoffmann |
| Family: | Acestrorhamphidae (American tetras), subfamily: Hyphessobryconinae | |||
| Max. size: | ||||
| Environment: | pelagic; freshwater; dH range: 2 - 21 | |||
| Distribution: | South America: Peru. | |||
| Diagnosis: | Diagnosis: Differentiated from all the other species in the H.-helerorhabdus-group by the following characters: a relatively deep body (depth 2.65-3.00 times in SL); seven to eight scales above the lateral line; a narrow, long maxilla with six to eight conical to tricuspid teeth, reaching up to the pupil; anal fin with 22 to 26 branched fin rays; males with hooklets in the distal part of anterior fin rays; 33-34 scales in a longitudinal line; lateral line relatively short, with seven pored scales. Color in live: a deep black lateral band from the gill cover to the end of middle caudal fin rays on two scales; adipose deep red; upper part of the iris also deep red; a remarkable sexual dichromatism (males with especially deep red margins of anal, caudal, dorsal and pelvic fins, females without red fin margins) (Ref. 57646). | |||
| Biology: | ||||
| IUCN Red List Status: | Vulnerable (VU); Date assessed: 23 April 2014 (B1ab(iii)) Ref. (130435) | |||
| Threat to humans: | harmless | |||