Morphology Data of Metzia parva
Identification keys
Abnormalities
Main Ref. Luo, W., J.P. Sullivan, H.-T. Zhao and Z.-G. Peng, 2015
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
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales cycloid scales
Diagnosis

Metzia parva is distinguished from all other congeners by the following characters: smaller body size, 48.3-57.7 mm SL (vs. 58.3-151.4 mm SL); lateral line complete, but interrupted in some specimens along ventral margin above anal-fin; anal fin with 12-14 branched rays (vs. 10-11 or 15-20); pectoral fin with 10 branched rays (vs. 11-16); pelvic fin with 6 branched rays (vs. 7-9); longer caudal peduncle 17.8-21.7% SL (vs. 14.8-17.4% SL); shorter preanal length 60.9-66.0% SL (vs. 69.0-73.0% SL); and interorbital width distinctly larger 28.4-33.0% HL (vs. 20.2-24.7% HL) (Ref. 104754).

Description: Mouth sub-superior; Gill rakers on outer surface of first gill arch 14-16.; Vertebrae 4 + 32 (Ref. 104754).

Ease of Identification

Meristic characteristics of Metzia parva

Lateral Lines Interrupted: No
Scales on lateral line 40 - 44
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 9 - 10
Scale rows below lateral line 4 - 4
Scales around caudal peduncle 14 - 15
Barbels
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   
Ventral  
Spines total
Soft-rays total 10 - 10
Adipose fin absent

Caudal fin

Attributes forked

Anal fin(s)

Fins number
Spines total
Soft-rays total 15 - 17

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   11 - 11
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   7 - 7
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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