Morphology Data of Gymnocranius frenatus
Identification keys
Main Ref. Carpenter, K.E. and G.R. Allen, 1989
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral fusiform / normal
Cross section oval
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales ctenoid scales

Description: The lower edge of the eye is well above a line from the tip of the snout to the middle of the caudal fin fork. The eye is relatively large, its diameter slightly greater than the interorbital space. Overall color is silvery-white, grayish on upper back. There are about 5-7 narrow irregular bars, which may be very faint, on the sides. A prominent blue-edged, yellow band from the front of the eye to above the upper lip encompassing the nostrils. The cheek is yellowish with 3 or 4 oblique bands sloping upwards from above the upper jaw towards the rear part of the eye. Fins are mainly clear or whitish. A black spot is at the base of upper pectoral rays; a narrow brown bar across the base of the entire fin (Ref. 2295). Body depth 2.3-2.4 in SL. Caudal fin tips pointed (Ref. 90102).

Ease of Identification

Meristic characteristics of Gymnocranius frenatus

Lateral Lines 1 Interrupted: No
Scales on lateral line 51 - 53
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 5.5 - 5.5
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
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   0 - 0
Ventral  0 - 0
Spines total 10 - 10
Soft-rays total 10 - 10
Adipose fin absent

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 10 - 10

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   14 - 14
Pelvics Attributes  more or less normal
Position    thoracic  beneath origin of D1
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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