Main Ref. | Soares, I.M., V.A. Bertaco, P.M.M. Ito and J. Zuanon, 2017 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks | Mature males possess a slightly curved bony hooks on the pelvic- and anal-fin rays. Pelvic fin consists of one hook per segment, which are arranged on the distal portion of the first to fifth (rarely on the sixth) branched rays. The distal portions of the last unbranched anal-fin ray and up to the eighth or ninth (sometimes tenth) branched anal-fin rays have one or two pairs of hooks per segment. |
Striking features | |
Body shape lateral | fusiform / normal |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | terminal |
Type of scales | |
Diagnosis |
Boehlkea weitzmanican be distinguished from B. fredcochui by the following characters: complete lateral line (vs. incomplete); four rows of scales below lateral line (vs. three); a conspicuous vertically elongated humeral spot present (vs. a humeral spot absent); and 17-21 branched anal-fin rays (vs. 22-25). It can be diagnosed from B. orcesiby having 13-14 maxillary teeth (vs. 5-12), head length 27.9-29.9% (vs. 24.3-27.5% of SL), and color pattern consisting of black chromatophores in the basal half of dorsal fin, distal portion of pelvic fin, lower caudal-fin lobe and anal fin (vs. unpigmented fins) (Ref. 118101). |
Ease of Identification |
Lateral Lines | Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | 36 - 40 |
Scales in lateral series | |
Scale rows above lateral line | 5 - 6 |
Scale rows below lateral line | |
Scales around caudal peduncle | 14 - 14 |
Barbels | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | 15 - 16 |
total | 36 - 38 |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | 10 - 10 |
Adipose fin | present |
Attributes | forked |
Fins number | |
Spines total | |
Soft-rays total | 21 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays 10 - 12 | |
Pelvics | Attributes more or less normal |
Position abdominal before origin of D1 | |
Spines | |
Soft-rays 7 - 7 |