";} } ?> Morphology Summary - Hedinichthys grummorum
Morphology Data of Hedinichthys grummorum
Identification keys
Main Ref. Prokofiev, A.M., 2010
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks Males with small agglomerations of a small number of rounded tubercles separated from each other located under the anterior-ventral margin of the orbit. All rays of the pectoral fin are of the same width and not thickened. No sexual dimorphism based on morphometric characters.

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 scales embedded or partly/completely absent

Can be diagnosed by the following characters: trunk teretial; head conical, without

developed rostrum; pelvic fins located anteriorly from the vertical through the origin of the dorsal fin; approximately ten gill rakers on the first branchial arch; lateral line incomplete; black longitudinal band along the middle part of the body; small lobes of the bony capsule of the swim bladder, the lobes connected by the moderately developing manubrium; and lacking epural (Ref. 85843).

Ease of Identification

Meristic characteristics of Hedinichthys grummorum

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 6
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 10
total 39 - 39


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Spines total
Soft-rays total 9 - 10
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number
Spines total
Soft-rays total 7 - 7

Paired fins

Pectoral Attributes  more or less normal
Soft-rays   9 - 11
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Soft-rays   6 - 7
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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