Morphology Data of Chromis monochroma
Identification keys
Main Ref. Allen, G.R. and J.E. Randall, 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 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 characterized by having D XIII-XIV,10-11 (usually XIII,11); A II,11; pectoral rays 16-17 (usually 17); 3 spiniform caudal rays; 14-15 (usually 14) tubed lateral line scales ; gill rakers 7-8 + 21-22 (total, 28-29); body depth 1.79-2.00 in SL; dorsally olive-brown, shading to pale iridescent blue-green ventrally; top of head and tip of chin are blackish; spinous dorsal fin and scaled basal part of soft dorsal fin are yellowish grey, the rest of soft dorsal fin hyaline with pale yellow rays; anal fin yellowish with scaled basal part slightly dusky brownish; lobes of caudal fin are broadly dusky yellow, the tips blackish, posterocentral half of fin hyaline; pelvic and pectoral fins are pale yellowish; alcohol preserved are nearly uniform brown (Ref. 78145).

Ease of Identification

Meristic characteristics of Chromis monochroma

Lateral Lines Interrupted: No
Scales on lateral line 14 - 15
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 2.5 - 2.5
Scale rows below lateral line 8 - 8
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 21 - 22
on upper limb 7 - 8
total 28 - 29
preanal 11 - 11
total 26 - 26


Dorsal fin(s)

Fins number 1
Finlets No. Dorsal   
Spines total 13 - 14
Soft-rays total 10 - 11
Adipose fin

Caudal fin

Attributes forked

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 11 - 11

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   16 - 17
Pelvics Attributes  
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
Modified by Olisa, Kristine Elaine Paz
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