Morphology Data of Ophichthus megalops
Identification keys
Abnormalities
Main Ref. Asano, H., 1987
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 eel-like
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This moderately elongate species of Ophichthus, subgenus Coecilophis is distinguished by the following characters: tail 55%, head 11.0% of total length and body depth at gill openings about 4% of TL; origin of dorsal-fin 3.5 pectoral-fin lengths behind head which is more than 1 head length behind gill opening; elongate pectoral fins, non-lanceolate; posterior margin or orbit in advance of rictus; posterior nostril a hole above upper lip is covered by a flap; conspicuous head pores, SO 1+4, IO 4+2, POM 3+6; numerous small, conical teeth, biserial on jaws, uniserial posteriorly on vomer, biserial anteriorly; pale in color, slightly darker dorsally, snout tip and lower jaw darker, fins and anterior nostrils pale, posterior region of anal-fin base black; vertebral formula 29/60/160 (Ref. 84366).

Ease of Identification

Meristic characteristics of Ophichthus megalops

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 144
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 60 - 60
total 160 - 160

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   14 - 14
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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