Main Ref. | Schmitter-Soto, J.J., 2017 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | |
Diagnosis |
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). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | 34 - 37 |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | 7 - 8.5 |
Scale rows below lateral line | |
Scales around caudal peduncle | 14 - 16 |
Barbels | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | 9 - 11 |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total | 34 - 34 |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | 10 - 10 |
Adipose fin |
Attributes | forked |
Fins number | |
Spines total | |
Soft-rays total | 21 - 24 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays 12 - 12 | |
Pelvics | Attributes more or less normal |
Position abdominal before origin of D1 | |
Spines | |
Soft-rays |