Morphology Data of Diancistrus altidorsalis
Identification keys
Abnormalities
Main Ref. Schwarzhans, W., P.R. Møller and J.G. Nielsen, 2005
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Diagnosis: Vertebrae 11+32-34=43-45, dorsal fin rays 76-85, anal fin rays 59-68; eyes large (at least 2.5% SL); outer pseudoclasper large, broad, ear-lobe shaped; inner pseudoclasper a fleshy appendix at the anterior-inner rim of the outer pseudoclasper, without supporter; large scale patch on operculum above opercular spine (6–9 scales) and 1 to 3 isolated scales below opercular spine; head profile strongly ‘high-necked / hump-backed’; color yellow in live specimens (Ref. 57884).

Description: Characterized by uniformly yellow color; body depth at origin of anal fin 16.5-23.2 (mean=20.5)% SL; posterior cheek with vertically elongate scale patch (Ref. 90102).

Ease of Identification

Meristic characteristics of Diancistrus altidorsalis

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 14 - 18
Vertebrae
preanal 11 - 11
total 43 - 45

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 76 - 85
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 59 - 68

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   17 - 19
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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