Morphology Data of Omobranchus ferox
Identification keys
Abnormalities
Main Ref. Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral elongated
Cross section circular
Dorsal head profile clearly convex
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth sub-terminal/inferior
Type of scales
Diagnosis

Diagnosis: A good diagnostic characteristic is a short diagonal line found just behind the eye (Ref. 44091). Head without cirri; lower end of gill opening usually opposite 4th or 5th pectoral fin ray; sensory pores in infraorbital an interorbital canals mostly 8 and 3 respectively; lateral line tubes 1 to 4 (Ref. 559).

Description: No fleshy crest on top of head; median interorbital pore present in 98% of specimens (Ref. 4404). Dorsal fin with 11-13 spines and 20-23 soft rays; anal fin with 2 spines and 22-26 soft rays (Ref. 4404).

Colouration: Body with faint, dusky bands anteriorly; males with a dusky spot distally at rear end of dorsal fin (Ref. 4404).

Ease of Identification

Meristic characteristics of Omobranchus ferox

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 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1notched No
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 11 - 13
Soft-rays total 20 - 23
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 22 - 26

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   13 - 13
Pelvics Attributes  more or less normal
Position    jugular  beneath origin of D1
Spines     1
Soft-rays   2 - 2
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