Morphology Data of Brachirus sayaensis
Identification keys
Abnormalities
Main Ref. Voronina, E.P., 2019
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
Cross section flattened
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following characters: body slightly elongate, broad in front and tapering behind; caudal fin joined to dorsal and anal fins; both pectoral fins are rudimentary, but present; opercular openings are restricted, widely separated from each other, opercular membrane on both sides of body joined to middle of upper rays of pectoral fins and forming continuous membranous connection with gill opening; snout with no bony process; lips without labial papillae; tubular anterior nostril is short; pelvic fin of eyed side not broadly joined to anal fin; scales ctenoid on both sides of body, except those of lateral line; vertebrae 9 + 36-37, epicranial complex 3-0-3(1). Colouration: ocular side in preserved specimens pale brownish without any cross bands, blind side pale yellowish with dorsal, anal and caudal fins dark brown; inside of mouth pale (Ref. 126075).

Ease of Identification

Meristic characteristics of Brachirus sayaensis

Lateral Lines Interrupted: No
Scales on lateral line 105 - 105
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 9 - 9
total 45 - 46

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 77 - 77
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   5 - 5
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