| Family: |
Crenuchidae (South American darters), subfamily: Characidiinae |
| Max. size: |
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5.4 cm SL (male/unsexed) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: known only from rio Abelha, rio Barra Grande and rio Nestor of the upper rio Paraná basin in Brazil. |
| Diagnosis: |
Dorsal soft rays (total): 13-14; Anal soft rays: 10-11; Vertebrae: 34-34. Distinguished from all members of the genus Characidium, except Characidium serrano (upper rio Uruguai basin), in having 8-11 incomplete oblique bars on body sides, extending upwards and downwards from the lateral line and independent of the 8 or 9 dorsal transverse bars which usually are present in Characidium species. Can be differentiated from Characidium serrano in having a wider body width (12.2-15.7%) and lower number of perforated scales on lateral line (32-35) vs. 8.7-11.1% in SL and 37-39 scales in Characidium serrano (Ref. 74998).
Description: Dorsal fin iii,10; iii,11; anal fin ii,8; ii9; pectoral fin iii,10; iii,11; pelvic fin i8; i9 (Ref. 74998). |
| Biology: |
|
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 07 November 2018 Ref. (130435)
|
| Threat to humans: |
harmless |
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