Morphology Data of Amphilophus astorquii
Identification keys
Main Ref. Stauffer, J.R. Jr., J.K. McCary and K.E. Black, 2008
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Similar color in males and females. Breeding individuals have dark greenish/back background and 5 dark vertical bars under dorsal fin and 1 anterior to dorsal fin and 1 on caudal peduncle; fins gray with dark bars on dorsal fins; and iris gold with dark vertical eye-bar (Ref. 75014).

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral short and / or deep
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Breeding adults with completely black caudal peduncle and head. Distance from snout to dorsal-fin origin 41.1-47.9% SL (Ref. 75014).

Ease of Identification

Meristic characteristics of Amphilophus astorquii

Lateral Lines Interrupted: No
Scales on lateral line 26 - 31
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
on upper limb


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total 16 - 18
Soft-rays total 10 - 12
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total 6 - 7
Soft-rays total 8 - 8

Paired fins

Pectoral Attributes  
Soft-rays   15 - 17
Pelvics Attributes  
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Torres, Armi G.
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