Morphology Data of Ophichthus nigroventralis
Identification keys
Abnormalities
Main Ref. Kodeeswaran, P., A. Mohapatra and T.T.P.A. Kumar, 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 moderate elongated species is distinguished from its congeners by the following set of characters: dorsal-fin origin slightly behind the pectoral-fin tip; pectoral fin lanceolate, slightly

shorter than the upper jaw in length; head length 6.7-7.5 in TL; pre-anal length 2.1-2.2 in TL; tail 1.9 in TL; head pores - SO 1 + 3, IO 4 + 2, POM 6 + 3; teeth small, conical and pointed; intermaxillary with a rosette of 10 teeth; vomer with 6 anterior teeth in irregular biserial rows, posterior teeth 11 in uniserial row; maxillary with 24-25 uniserial pointed teeth; in fresh, body yellowish-brown dorsally, whitish ventral, abdomen with numerous minute black pigmentation

extends up to tail, pectoral fin whitish with brown base; pre-dorsal vertebrae 17-18; pre-anal vertebrae 53-54; total vertebrae 131-134 (Ref. 130908).

Ease of Identification

Meristic characteristics of Ophichthus nigroventralis

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
on upper limb
total
Vertebrae
preanal 53 - 54
total 131 - 134

Fins

Dorsal fin(s)

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

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   
Pelvics Attributes  
Position    
Spines     
Soft-rays   
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