Morphology Data of Hypoplectrus atlahua
Identification keys
Main Ref. Tavera, J. and P.A. Acero, 2013
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 from its congeners by the following set of characters: 14-16 total gill rakers (GR) on first arch including rudiments; snout length is rather small, 11.8-13 % SL; upper jaw large, 18.8-23.2% SL; pectoral fins long, 35.3-38.8% SL, pelvic fins, 26.8-27.4 % SL; pelvic fins do not reach anal fin; body colour basically dark brown with anterior violet speckles, lines, and a well-marked dot over the rear edge of opercle, no distinct dark spots (nose, pectoral-fin base, and caudal peduncle) (Ref. 92994).

Ease of Identification

Meristic characteristics of Hypoplectrus atlahua

Lateral Lines Interrupted: No
Scales on lateral line
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
total 14 - 16


Dorsal fin(s)

Fins number 1
Finlets No. Dorsal   
Spines total 10 - 10
Soft-rays total 14 - 15
Adipose fin

Caudal fin


Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   13 - 13
Pelvics Attributes  
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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