Morphology Data of Sphyraena helleri
Identification keys
Abnormalities
Main Ref. Morishita, S. and H. Motomura, 2020
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 compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following set of characters: first gill arch with one gill raker; pelvic-fin insertion is located slightly before vertical through first dorsal-fin origin; pored lateral-line scales 121-127, total lateral-line scales 132-134; scales above lateral line 12-13 and below 14-15; snout comparatively long, its length 15.0-16.4% SL; upper jaw long, the posterior tip reaching to or beyond anterior nostril, but not reaching to below posterior nostril, its length 11.9-12.9% SL; eye large, orbit diameter 4.8-5.9 % SL and depth 4.8-5.6% SL; anal-fin base somewhat short, its length 6.8-7.5% SL; last dorsal- and anal-fin ray lengths 4.2-4.3% SL and 3.6-4.7% SL, respectively; anus is comparatively close to anal-fin origin, its anterior and posterior margins to anal-fin origin 6.5-8.2 % HL and 4.1-4.9% HL, respectively; the head sensory canal pores on suborbital area are simple or sometimes slightly branched, their lowermost parts very close to lacrimal bone margin, large smooth area lacking canal pores absent on mid-margin of lacrimal bone. Colouration: lateral surface of body no stripes or bands; caudal fin gray (Ref. 123366).

Ease of Identification

Meristic characteristics of Sphyraena helleri

Lateral Lines Interrupted: No
Scales on lateral line 132 - 134
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 12 - 13
Scale rows below lateral line 14 - 15
Scales around caudal peduncle
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 1 - 1
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 6 - 6
Soft-rays total 9 - 9
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 8 - 9

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   12 - 12
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
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