Morphology Data of Nocomis biguttatus
Identification keys
Abnormalities
Main Ref. Page, L.M. and B.M. Burr, 2011
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
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Caudal fin red (young) to yellow (adults); other fins yellow to orange; large male with bright red spot behind eye, female with brassy spot ); dark olive to brown above; iridescent green on yellow-brown side; white to light yellow below; dusky iridescent yellow stripe along back; yellow streak above dusky stripe along side and around snout; black caudal spot (all darkest on young); rounded snout; 38-45 scales on lateral line; usually 16-17 scales around caudal peduncle; pharyngeal teeth 1,4-4,1. Breeding male is pink below with pin-orange fins and has many large tubercles on top of head (Ref. 86798).

Ease of Identification

Meristic characteristics of Nocomis biguttatus

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

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total
Adipose fin absent

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    abdominal
Spines     
Soft-rays   
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