| Family: |
Characidae (Characins; tetras), subfamily: Stevardiinae |
| Max. size: |
3.33 cm SL (male/unsexed); 3.78 cm SL (female) |
| Environment: |
benthopelagic; freshwater |
| Distribution: |
South America: Ríos Tambopata and Madre de Dios, Río Madre de Dios basin in Peru. |
| Diagnosis: |
Dorsal soft rays (total): 9-10; Anal soft rays: 11-14; Vertebrae: 37-38. This species can be distinguished from its congeners by having the following characters: urogenital papilla externally visible in both males and females (vs. absent in M. pearsoni); length of urogenital papilla of sexually active males is shorter, half length of anal-fin base (vs. about equal to length of anal fin-base in M. kontos); dorsal fin height 16.1-17.8% SL in females and juveniles (vs. 13.4-15.8% SL in M. kontos); and 5 premaxillary tooth cusps (vs. 7 in M. kontos) (Ref. 94699).
Description: Dorsal-fin rays ii,7-8; anal-fin rays ii,9-12; pectoral-fin rays i,9-10; pelvic-fin rays ii,4-5; 3 scale rows from pelvic-fin origin to lateral line (Ref. 94699). |
| Biology: |
|
| IUCN Red List Status: |
Not Evaluated (N.E.) Ref. (130435)
|
| Threat to humans: |
harmless |
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