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

Sex attributes

Specialized organs no special organs
Different appearance males alike females
Different colors males alike females
Remarks

Descriptive characteristics of juvenile and adult

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

Description: Horizontal blue lines on the snout are distinctive (Ref. 37816, 48635). Forehead profile is moderately steep. Large adults develop a bony ridge on the nape and a bony shelf over the front part of the eye. The inner surface of the pectoral fin axil without scales. Overall color is silvery with thin brown scale margins. The anterior half of the head is often brown with a series of narrow undulating, longitudinal lines on the cheek and side of the snout. Fins are yellow or orange; caudal fin is frequently dusky brown; a narrow brown bar across the base of pectoral fins. Juveniles under about 25 cm SL often with 5 or 6 dark bars on the side and a dark bar below the eye (Ref. 2295). Body depth 2.4-2.5 in SL (Ref. 90102).

Ease of Identification

Meristic characteristics of Gymnocranius grandoculis

Lateral Lines 1 Interrupted: No
Scales on lateral line 50 - 51
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
total
Vertebrae
preanal
total

Fins

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 )
Entered by Reyes, Rodolfo B.
Modified by Olisa, Kristine Elaine Paz
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17