Main Ref. | Marceniuk, A.P., A.P. Acero, R. Cooke and R. Betancur-R, 2017 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks | Females have well-developed fleshy protuberances or pads in basal portion of pelvics, especially during reproductive season; vomerine tooth patches and accessory tooth patches not observed directly, but possibly showing same variation described for A. canteri and A. jimenezi. |
Striking features | |
Body shape lateral | |
Cross section | oval |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | |
Diagnosis |
This species is distinguished from its congeners by the following characters: gill rakers on the first and second gill arches 31-36 rarely 37, on first gill arch only 14-18 rakers; osseous medial groove absent; fleshy medial groove of neurocranium conspicuous or inconspicuous, but never surpassing posterior margin of eyes; lateral margin of sphenotic straight, as wide anteriorly as medially; pterotic lateral margin markedly convex, sometimes angled; mouth 10.5-13.2% SL; cephalic shield at frontals area 8.8-10.1% SL; mesethmoid median portion narrow; mesethmoid medial notch narrow and deep; longer pectoral-fin spine 18.2-22.6% SL; external posterior branch of lateral ethmoid columnar and thin; fenestra delimited by mesethmoid and lateral ethmoid conspicuous (Ref. 116660). |
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 |
Attributes | |
Fins number | |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | |
Adipose fin |
Attributes |
Fins number | |
Spines total | |
Soft-rays total |
Pectoral | Attributes |
Spines | |
Soft-rays | |
Pelvics | Attributes |
Position | |
Spines | |
Soft-rays |