| Characidae (Characins; tetras), subfamily: Stethaprioninae |
| 6.72 cm SL (male/unsexed) |
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benthopelagic; freshwater |
| Central America: endemic to the upper Macal River in Maya Mountains, Belize. |
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Dorsal soft rays (total): 10-10; Anal soft rays: 21-24; Vertebrae: 34-34. Astyanax macal is distinguished from other congeners in Yucatan, Peten and Belize by having the following characters: predorsal length, 50% SL or shorter (50% or longer in A. altior and A. angustifrons); least depth, 12% SL or less (12% or more in A. altior); origin of anal fin usually without overlap to last dorsal-fin ray (usually overlapping in A. baileyi); double scaly sheath in anal-fin base (vs. single); bifid nuptial tubercles in male (vs. always simple); rostral fontanel, sides convex (vs. usually straight) (Ref. 118583). |
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Not Evaluated (N.E.) Ref. (130435)
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| harmless |
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