| Family: |
Characidae (Characins; tetras), subfamily: Stethaprioninae |
| Max. size: |
4.9 cm TL (male/unsexed); max.weight: 1.2 g |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: Amazon basin in Brazil. |
| Diagnosis: |
Dorsal soft rays (total): 8-9; Vertebrae: 32-33. This species is distinguished from its congeners, except species those included in the M. lepidura group by the following: a dark blotch on the upper caudal-fin lobe, the lower lobe is hyaline or light grey (vs. caudal lobes hyaline or with a black blotch on both lobes). It is distinguished from the species of M. lepidura group by the absence of a humeral spot
(vs. presence) and in having a roughly triangular and dark spot at the caudal-fin base, extending posteriorly along the middle caudal-fin rays, and distinctly separate from the spot on the upper caudal-fin lobe (vs. middle caudal-fin rays hyaline or dark and no triangular spot separated from upper caudal-fin spot) (Ref. 85060). |
| Biology: |
|
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 07 November 2018 Ref. (130435)
|
| Threat to humans: |
harmless |
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