Morphology Summary - Opsariichthys rubriventris
Morphology Data of Opsariichthys rubriventris
Identification keys
Abnormalities
Main Ref. Chen, J.-B., Y.-T. Li, J.-J. Zhou, C. Li, G.-X. Weng, H.-D. Lin and J.-J. Wang, 2024
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  (shape guide) fusiform / normal
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 set of characters: absence of maxillary barbels; absence of anterior notch at the tip of the upper lip; lateral line scales 39-43; predorsal scales 13-14; narrow body width; lower jaw protrudes slightly beyond the front of the snout; 2 rows of pearl organs of the cheek, and the pearl organs are cone?shaped; the pectoral fins of adult males do not extend to the origin of the pelvic fins; adult males have significant nuptial coloration; the lower jaw and ventral side are orange?red; the envelope of the first six rays of the anal fin of adult males, females, and juveniles is orange red, and the remaining rays gradually become colorless (Ref. 137452).

Ease of Identification

Meristic characteristics of Opsariichthys rubriventris

Lateral Lines Interrupted: No
Scales on lateral line 39 - 43
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 7 - 8
Scale rows below lateral line 3 - 3
Scales around caudal peduncle 14 - 15
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 7 - 7
Adipose fin absent

Caudal fin  (shape guide)

Attributes

Anal fin(s)

Fins number 1
Spines total
Soft-rays total 9 - 11

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   12 - 14
Pelvics Attributes  
Position    
Spines     
Soft-rays   8 - 9
(e.g. 9948)
(e.g. oophagy)
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