Morphology Data of Ambassis gymnocephalus
Identification keys
Abnormalities
Main Ref. Heemstra, P.C. and T.J. Martin, 1986
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

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
Diagnosis

Description: Depth 2.6-2.9 times in standard length; head 2.7-2.9 times in standard length; eye diameter 3.1-3.4 times in head length (Ref. 4318). Supraorbital spines 1-5, usually 3 or 4; lower edge and angle of preopercle serrate; dorsal 2/3 of vertical preopercle edge smooth; preopercle ridge completely serrate along lower limb; a large retrorse spine on preorbital just below anterior nostril; preorbital ridge smooth or serrate; interopercle smooth except for 1 or rarely 2 small spines (Ref. 4318). A row of minute teeth on vomer, palatines and tongue (Ref. 4218). Dorsal fin with 7-8 spines and 8-10 soft rays; anal fin with 3 spines and 8-10 soft rays; pectoral fin with 14-15 rays (Ref. 4318). Scales on lateral line 27-29, interrupted; predorsal scales 13-16; 2 rows of cheek scales (Ref. 4218).

Ease of Identification

Meristic characteristics of Ambassis gymnocephalus

Lateral Lines Interrupted: No
Scales on lateral line 27 - 29
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 22 - 25
on upper limb 8 - 10
total 30 - 35
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1notched No
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 7 - 8
Soft-rays total 8 - 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 8 - 10

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   14 - 15
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Spines     
Soft-rays   
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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