Morphology Data of Sphyraena guachancho
Identification keys
Main Ref. Daget, J., 2003
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

Diagnosis: 102-119 scales in lateral line; no chevrons on the flanks or, if present, not so well marked as in Sphyraena afra (Ref. 57401).

Description: body elongate, slightly compressed; head large, with a long and pointed snout; interorbital space convex; hind edge of opercular bone with 2 spines; mouth large, lower jaw prominent without any skin appendage; hind end of premaxillary reaching level of anterior rim of eye in adults; teeth strong, pointed, of irregular size and turned backwards on both jaws; teeth on roof of mouth; 1st dorsal fin begins behind insertion level of ventral fin; last rays of soft dorsal and anal fins elongated, stretching over the last rays when folded back; hind end of pectoral fin stands behind insertion level of ventral fin; caudal fin forked; scales small, 102-119 in lateral line (Ref. 57401).

Coloration: back and upper part of flanks greyish or olive greenish, lower part of flanks and belly silver white; in live fish, a narrow irregular and yellow stripe stretches along middle of flank; edge of ventral and anal fins blackish; ends of median caudal rays blackish; sides of adults with dark spots and vertical bars which, forward, curve to form chevrons, but not so obvious as in Sphyraena afra (Ref. 57401).

Ease of Identification

Meristic characteristics of Sphyraena guachancho

Lateral Lines Interrupted: No
Scales on lateral line 102 - 119
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb


Dorsal fin(s)

Fins number 2
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 6 - 6
Soft-rays total 9 - 9
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

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

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   12 - 12
Pelvics Attributes  more or less normal
Position    before origin of D1
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Garilao, Cristina V.
Modified by Musschoot, Tobias
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