| Family: |
Crenuchidae (South American darters), subfamily: Characidiinae |
| Max. size: |
3.19 cm SL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: tributary streams of Rio Cuiabá, upper Rio Paraguay basin in Brazil. |
| Diagnosis: |
Dorsal soft rays (total): 12-13; Anal soft rays: 9-9; Vertebrae: 33-33. Belongs to a group of species, including Characidium xavante, distinguished uniquely by having high number (12-18) of dark, vertical bars on the body, each bar having the width of a scale. Differs from Characidium xavante by a greater number of scales
around the caudal peduncle (12 vs. 10), narrower interorbital region (interorbital distance 20.5-28.6 vs. 30.1-38.0% HL) and deeper caudal peduncle (caudal peduncle depth 46.2-57.8% vs. 35.4-44.9% HL). Additional conspicuous external characters which are not unique but are
useful in the identification of this species include absence of adipose fin, incomplete lateral line, and presence a dark blotch on the caudal peduncle (Ref. 75787).
Description: Dorsal fin iii9; iii,10; Anal fin iii,6; Pectoral fin iii,8, iii9, iii,10; Pelvic i7, i8 (Ref. 75787). |
| Biology: |
|
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 07 November 2018 Ref. (130435)
|
| Threat to humans: |
harmless |
Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.
