Morphology Data of Chromis athena
Identification keys
Main Ref. Allen, G.R. and M.V. Erdmann, 2008
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 terminal
Type of scales

This species is distinguished by the following characters: D XIII,10 or 11; A II,10 or 11; pectoral rays 17 or 18; spiniform caudal rays 3; tubed lateral-line scales 13 or 14; gill rakers 9 + 20 or 21 = 29 or 30; body depth 2.0-2.1 in SL; color overall dusky bluish grey, except dark grey on anterior half of head and bright yellow on nape and upper back above lateral-line; fins mainly translucent whitish except caudal fin lobes and basal portion of soft dorsal fin dark grey; color in alcohol mainly mottled brown with translucent whitish fins (Ref. 79629).

Description: body moderately deep and compressed; head scaled except lips, tip of snout and a narrow zone; mouth terminal, small and oblique; opercle ending posteriorly in a flat spine; teeth multiserial (Ref. 79629).

Coloration: overall dusky bluish grey, except dark grey on anterior half of head and bright yellow on nape and upper back above lateral-line scales; spinous dorsal and basal portion of soft dorsal fin dark grey, remaining portion of soft dorsal translucent white; anal fin translucent whitish; caudal fin mainly dark grey with translucent white posterior margin; pectoral and pelvic fins translucent white (Ref. 79629).

Ease of Identification

Meristic characteristics of Chromis athena

Lateral Lines Interrupted: No
Scales on lateral line 13 - 14
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 20 - 21
on upper limb 9 - 9
total 29 - 30
preanal 11
total 26


Dorsal fin(s)

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

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total 2 - 2
Soft-rays total 10 - 11

Paired fins

Pectoral Attributes  
Soft-rays   17 - 18
Pelvics Attributes  
Spines     1
Soft-rays   5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Busson, Frédéric
Modified by Olisa, Kristine Elaine Paz
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17