Morphology Data of Xenisthmus polyzonatus
Identification keys
Abnormalities
Main Ref. Gill, A.C., S.V. Bogorodsky and A.O. Mal, 2017
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral elongated
Cross section oval
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following character: D2 usually I,11 (rarely I,12); A I,10-11; tongue rounded to truncate; posterior nostril with well-developed anterior flap (Ref. 115539).

Description: Characterized by golden brown color; 10-12 narrow pale greyish bars on side; dark brown bar under eye; head with irregular white bars; middle of caudal fin base with small, pale-edged black spot; caudal and dorsal fins with scattered brown spots; branched caudal rays 13; about 20 predorsal scales, extending to above posterior margin of preopercle; scaled cheek and opercle; depth of body 5.3-6.8 in SL (Ref. 90102).

Ease of Identification

Meristic characteristics of Xenisthmus polyzonatus

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series 54 - 66
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle 27 - 32
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 9 - 10
on upper limb 3 - 4
total 12 - 14
Vertebrae
preanal 10 - 10
total 26 - 26

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 7 - 7
Soft-rays total 11 - 12
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 10 - 11

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   17 - 18
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
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