Morphology Data of Synodus sanguineus
Identification keys
Main Ref. Randall, J.E., 2009
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

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

This species is distinct in having the following characters: D 12; A 9; pectoral rays 13; 54 lateral line scales; 3½ scales between lateral line and base of dorsal fin; 15 median predorsal scales; 54 total vertebrae; 3 anterior palatine teeth of inner row longer than posterior teeth; preopercle scaled to posterior margin, all scales large; membranous posterior flap of anterior nostril slender and leaf-like, when laid back reaching well beyond posterior nostril; body depth 6.6 in SL; eye moderately large, 4.45 in HL; pectoral fins extending posterior to a line connecting dorsal- and pelvic-fin origins, fin length 2.2 in HL; alcohol preserved color pale yellowish with only traces of dark pigment in blotches along lateral line, when fresh red on dorsal 1/2 of body, white ventrally, with V-shaped darker red bars extending 1/2 way into white ventral space, each with 3 constrictions; a vertical series of orangish red blotches in each interspace between red bars, ventralmost in white area between tips of red bars; median and pelvic fins with red cross bands (Ref. 80927).

Ease of Identification

Meristic characteristics of Synodus sanguineus

Lateral Lines Interrupted: No
Scales on lateral line 54 - 54
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 54 - 54


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total
Soft-rays total 12 - 12
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total
Soft-rays total 9 - 9

Paired fins

Pectoral Attributes  
Soft-rays   13 - 13
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
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