Morphology Data of Xenisthmus nigrolateralis
Identification keys
Abnormalities
Main Ref. Chen, I.-S., T. Harefa, G.-C. Jiang and C.-W. Chang, 2022
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
Cross section oval
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

The species is distinguished from its congeners by the following set of characters: D2 I,13; A I,13; pectoral fin rays16; longitudinal scale series 68-70; perdorsal scales 23; vertebral count 10 + 16 = 26; preopercular canal with rather more, 5 pores ?1, ?, ?, ?, and ?1, Colouration: lateral side of trunk with a broad, deep brown stripe from the rear of lateral gill opening to caudal fin base; dorsal profile of the lateral, broad deep brown stripe with waving margin; caudal with median blackish brown mark, and with outer region translucent; caudal fin base with a vertical black bar (Ref. 127452).

Ease of Identification

Meristic characteristics of Xenisthmus nigrolateralis

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
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   
Ventral  
Spines total 7 - 7
Soft-rays total 13 - 13
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 1 - 1
Soft-rays total 13 - 13

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   16 - 16
Pelvics Attributes  
Position    
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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