| Family: |
Characidae (Characins; tetras), subfamily: Stethaprioninae |
| Max. size: |
5.3 cm SL (male/unsexed) |
| Environment: |
demersal; freshwater |
| Distribution: |
Central America: Río Dolores in Alta Verapaz, Guatemala. |
| Diagnosis: |
Dorsal soft rays (total): 9-9; Anal soft rays: 21-26; Vertebrae: 32-33. Astyanax cubilhuitz is distinguised from other congeners in north-eastern Guatemala and Belize by having body depth 35% SL or less (35% or more in A. bacalarensis and A. belizianus), eye larger, diameter 35% HL (vs. 32% or less), mean predorsal length, 52% SL (49% in A. macal and A. petenensis), mean anal-base length, 26% SL (vs. 28% or more), longest anal-fin ray, mean 17% SL (vs. 14%), upper pharyngeal plate oval in shape (crescent-shaped, in A. belizianus); and humeral spot rectangular in shape (vs. indistinct or P-shaped) (Ref. 118583). |
| Biology: |
|
| IUCN Red List Status: |
Not Evaluated (N.E.) Ref. (130435)
|
| Threat to humans: |
harmless |
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