Morphology Data of Belodontichthys truncatus
Identification keys
Main Ref. Kottelat, M. and H.H. Ng, 1999
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

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

Differs from its sole congener, B. dinema, in having a shorter pectoral fin, 21.9-25.8% SL, versus 25.9-28.9; a shorter head, 20.9-23.9% SL, versus 24.2-26.0; and a shorter snout, 35.4-39.6% HL, versus 39.0-43.1 (Ref. 38432). Strongly compressed head and body; upturned mouth with conspicuous large teeth; pectoral fin longer than head (Ref. 43281).

Ease of Identification

Meristic characteristics of Belodontichthys truncatus

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
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 30 - 33


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total
Soft-rays total 3 - 4
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number
Spines total
Soft-rays total 79 - 96

Paired fins

Pectoral Attributes  
Spines     1
Soft-rays   16 - 20
Pelvics Attributes  
Soft-rays   10 - 10
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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