Morphology Data of Opistognathus albomaculatus
Identification keys
Abnormalities
Main Ref. Smith-Vaniz, W.F., 2023
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral
Cross section oval
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following characters: a rigid upper jaw lacking flexible lamina posteriorly, extending 0.4-0.6 eye diameters behind posterior margin of orbit; infraorbitals are relatively robust, the third infraorbital with very large sensory canal openings and moderate suborbital shelf; D X,19-21; A II,18-20; vertebrae 10+19; body with about 35-38 scale rows in horizontal series, no scales anterolaterally forward of

verticals from segmented dorsal-fin rays 5ā€“7; no vomerine teeth; body scale rows pigmented appearing to form a well-defined dark, horizontal rows that are separated by narrow pale interspaces; head and body are with large white blotches, and pale median fins with brown stripe on outer half of spinous dorsal fin and middle of soft dorsal

and anal fins; pectoral-fin base with dark a crescent shaped like a reversed letter ā€œCā€ that extends from dorsal margin of opercle and curves downward opposite bases of pectoral rays to near ventral margin of fin; iris with dark bars radiating from pupil (Ref. 128653).

Ease of Identification

Meristic characteristics of Opistognathus albomaculatus

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
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 13 - 15
on upper limb 5 - 7
total 19 - 22
Vertebrae
preanal 10 - 10
total 29 - 29

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total 10 - 10
Soft-rays total 19 - 21
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 18 - 20

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   18 - 19
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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