Main Ref. | Říčan, O. and S.O. Kullander, 2008 |
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 |
This relatively elongated species which reaches more than 12 cm TL, is distinguished from all species except A. kaaygua in having a modal count of 12 pectoral fin rays; differs from A. facetus, cf. facetus, and guarani, by having modally 6 C1 gill rakers; differs facetus in not having an upwards directed mouth and a longer dorsal fin scale cover, covering bases of 7-8 last spines (vs. only 2-3). The same as A. kaaygua, it has yellowish ground color, but without the red corners of caudal fin (present in kaaygua, and also differs by being much less deep-bodied. Distinguished from all its congeners by pink to red dominant males (Ref. 74689). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | |
Scale rows below lateral line | |
Scales around caudal peduncle | |
Barbels | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total | 26 - 26 |
Attributes | |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | 16 - 16 |
Soft-rays total | 9 - 10 |
Adipose fin |
Attributes | more or less truncate |
Fins number | 1 |
Spines total | 6 - 7 |
Soft-rays total | 8 - 9 |
Pectoral | Attributes |
Spines | |
Soft-rays | |
Pelvics | Attributes |
Position | |
Spines | |
Soft-rays |