Morphology Data of Ostichthys trachypoma
Identification keys
Main Ref. Greenfield, D.W., J.E. Randall and P.N. Psomadakis, 2017
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 short and / or deep
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

This species is distinguished by the following characters: 2½ scale rows above lateral line to midbase of spinous portion of dorsal fin; origin of anal fin is beneath spinous portion of dorsal fin; upper procurrent spiniform caudal-fin rays 4, lower rays 3; a half scale anterior to upper half of first lateral-line scale; dorsal profile of head moderately convex; pectoral-fin rays 14–16 (usually 15); lateral-line scales 28–30 (usually 29); gill rakers 8–11 + 14–17; last dorsal-fin spine is longer than penultimate spine and closely applied to soft portion of fin; snout short, 4.6–5.6 in HL; body depth 2.0–2.2 in SL; head length 2.3–2.5 in SL; least depth of caudal peduncle 4.0–4.5 in HL; colour when fresh reddish to silvery ventrally, with red stripes along the body following scale rows and usually narrower than the silvery intervening stripes; juveniles mostly silvery with red stripes limited to upper back (Ref. 114923).

Ease of Identification

Meristic characteristics of Ostichthys trachypoma

Lateral Lines Interrupted: No
Scales on lateral line 28 - 30
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 14 - 17
on upper limb 8 - 11


Dorsal fin(s)

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

Caudal fin


Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Soft-rays   14 - 16
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
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