Morphology Summary - Synodus lautus
Morphology Data of Synodus lautus
Identification keys
Abnormalities
Main Ref. Furuhashi, R. and H. Motomura, 2025
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 circular
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

The species is distinguished by the following set of characters. D 11-13; A 8-10; lateral-line scales 56-59; scale rows above lateral line 3-5; vertebrae 56-59; anterior gill-rakers 30-38; pseudobranchial filaments 21-28; peritoneal spots 14-17; palatine teeth uniform in length and size; posterior part of preopercle is scaled; anterior nostril flap (ANF) short, round or triangular, and not reaching rear margin of posterior nostril when laid back; ANF length/ inter-nostril distance (IND) 0.33-0.75 (mean 0.54); snout is moderately pointed in lateral view; pelvic fin moderately short, its length 21.6-24.0% SL; posterior process of pelvic girdle is wide. Colouration: when fresh, it is orange or orangish-brown dorsally, white ventrally, eight doughnut-shaped dark orange blotches along body axis, some continuous with saddle-shaped blotches on dorsum; pelvic-fin rays white, fin membranes transparent, no additional markings; caudal fin with broad yellowish-orange bands on each lobe; when in alcohol, body pale, with irregular dark pigmentation above lateral line (Ref. 137548).

Ease of Identification

Meristic characteristics of Synodus lautus

Lateral Lines Interrupted: No
Scales on lateral line 56 - 59
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 56 - 59

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 11 - 13
Adipose fin

Caudal fin  (shape guide)

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 8 - 10

Paired fins

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