Morphology Data of Erethistes nareshi
Identification keys
Main Ref. Mahapatra, B.K. and S. Kar, 2015
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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth sub-terminal/inferior
Type of scales

Erethistes nareshi is diagnosed by possessing the following unique combination of characters: rayed dorsal fin with a strong spine serrated along both the sides; pectoral fins equal to head with a strong flattened spine; pectoral spine serrated anteriorly, denticulated posteriorly; serration on outer edge directed towards tip and teeth on innder edge directed towards base; caudal fin deeply forked, uper lobe with an elongated filament (Ref. 101395).

Description: anal fin ii,6-7; pelvic fin i,5 (Ref. 101395).

Ease of Identification

Meristic characteristics of Erethistes nareshi

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


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Spines total 1 - 1
Soft-rays total 5 - 6
Adipose fin present

Caudal fin

Attributes more or less truncate; with dorsal filament

Anal fin(s)

Fins number
Spines total
Soft-rays total 8 - 9

Paired fins

Pectoral Attributes  
Spines     1
Soft-rays   6 - 7
Pelvics Attributes  
Position    abdominal  behind origin of D1
Soft-rays   6 - 6
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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