| Main Ref. | Reece, J.S., D.G. Smith and E. Holm, 2010 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | eel-like |
| Cross section | |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
This species is distinguished from its congeners except A. exulatus and A. schultzi by the position of the fourth supraorbital pore, anteromedial to the posterior nostril and separated from it by an interval of normal, pigmented skin; fewer vertebrae 98-108 (vs. 110-117 in A. exulatus and 105-113 in A. schultzi); longer snout-anus distance 45.1-50.6% TL (vs. 40.3-45.1% in A. exulatus and 41.5-45.1% in A. schultzi); with discrete, sharply defined pale spots (vs. larger, more diffuse pale areas oriented vertically in A. exulatus and uniform brown of A. schultzi) (Ref. 85321). |
| 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 |