Morphology Summary - Eigenmannia robsoni
Morphology Data of Eigenmannia robsoni
Identification keys
Abnormalities
Main Ref. Dutra, G.M., T.P.A. Ramos and N.A. Menezes, 2022
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  (shape guide) elongated
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species, a member of the E. trilineata species-group, is distinguished by the following characters: anal-fin hyaline; absence of enlarged eye 16.2-21.3%; caudal filament short, 19.9-36.4 % LEA; no lateral line stripe; no superior midlateral stripe; A 182-228; scales rows above lateral line 12-15; scales on lateral line 107-131; premaxillary teeth 32-34; dentary teeth 35-44; endopterygoid teeth 9-12; depth of posterodorsal expansion on infraorbitals 1+2 half as long as infraorbitals 1+2 length; basibranchial 1 unossified; precaudal vertebrae 13; coronomeckelian bone length corresponding to 20% of length of Meckel’s cartilage (Ref. 138579).

Ease of Identification

Meristic characteristics of Eigenmannia robsoni

Lateral Lines Interrupted: No
Scales on lateral line 107 - 131
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 12 - 15
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 13 - 13
total

Fins

Dorsal fin(s)

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

Caudal fin  (shape guide)

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 182 - 228

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   12 - 15
Pelvics Attributes  
Position    
Spines     
Soft-rays   
(e.g. 9948)
(e.g. oophagy)
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