Morphology Data of Diplotaxodon argenteus
Identification keys
Main Ref. Turner, G.F., R.L. Robinson, P.W. Shaw and G.R. Carvalho, 2004
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
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Diagnosis: Relatively shallow body with flat dorsal profile; relatively large, upwardly-pointing mouth with strongly protruding lower jaw; large number of gill-rakers (Ref. 55949).

Description: Moderately elongated with fairly large teeth and predatory facies; eyes not particulary large; snout narrow and fairly concave in profile, with a prominent premaxillary pedicel; mental process moderate to prominent (Ref. 55949). Dorsal fin with 14-15 spines and 11-13 rays, spines slender, last 1/3 length of head; anal fin with 3 spines and 10-11 rays, third spine stronger and shorter than last dorsal; pectoral fin length 66-75% of head length, not reaching anal fin; caudal fin emarginate (Ref. 127501).

Colouration: Females and non-breeding males with silvery countershaded body, grey dorsally; snout dark; body with an overall silver sheen; fins generally grey, though pelvic fins may be white; males in breeding dress develop a darker head and dorsum, black eyes, snout and fins; anal fin with 1-2 large yellow eggspots (Ref. 55949).

Ease of Identification

Meristic characteristics of Diplotaxodon argenteus

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 34 - 36
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 23 - 25
on upper limb


Dorsal fin(s)

Fins number 1
Finlets No. Dorsal   
Spines total 14 - 15
Soft-rays total 11 - 13
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 10 - 11

Paired fins

Pectoral Attributes  
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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