Main Ref. | Paugy, D., 2003 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | no special organs |
Different appearance | always different morphology between mature adults |
Different colors | males alike females |
Remarks | Sexual dimorphism affecting anal-fin shape (Ref. 2880, 81279), females with straight anal fin and males with curved anal fin (Ref. 2880). |
Striking features | none |
Body shape lateral | fusiform / normal |
Cross section | |
Dorsal head profile | more or less straight |
Type of eyes | more or less normal |
Type of mouth/snout | more or less normal |
Position of mouth | terminal |
Type of scales | cycloid scales |
Diagnosis |
Diagnosis: parietal fontanella absent in adults; snout short, comprised over three times in head length; dorsal-fin origin at same level as, or scarcely behind, pelvic-fin insertions; head narrow; adults medium-sized; black lateral band expanding over entire body length; sexual dimorphism affecting anal-fin shape, females with straight anal fin and males with curved anal fin; 8 premaxillary teeth; 4.5 scales above lateral line; 24-26 lateral line scales; 12-13 anal fin branched rays; 20-21 gill rakers in lower part of first branchial arch (Ref. 2880, 81279). Description: anal fin with 3 branched and 12-13 unbranched rays; jaws equal; premaxilla with two tooth rows, each comprising 8 teeth (Ref. 2880, 81279). Coloration: body silvery, dark back, white belly; dark longitudinal band (2 scales width) over the whole body length; humeral spot; precaudal band extending unto part of caudal fin; fins pale yellow in live specimens; after preservation in formalin, the longitudinal band becomes darker in males than in females (Ref. 2880, 81279). |
Ease of Identification |
Lateral Lines | 1 Interrupted: No |
Scales on lateral line | 24 - 26 |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | 4.5 - 4.5 |
Scale rows below lateral line | 3.5 - 3.5 |
Scales around caudal peduncle | |
Barbels | 0 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | 20 - 21 |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | |
Adipose fin | present |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 15 - 16 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays | |
Pelvics | Attributes more or less normal |
Position abdominal beneath origin of D1 | |
Spines | |
Soft-rays |