Morphology Data of Pareques iwamotoi
Identification keys
Abnormalities
Main Ref. Miller, G.C. and L.P. Woods, 1988
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 compressed
Dorsal head profile clearly concave
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth sub-terminal/inferior
Type of scales
Diagnosis

The head of juveniles and young adults may have a large dark wedge-like spot above and behind orbits; black peritoneum; branchial cavity with black lining. Slender caudal peduncle. Head with ground color; irregular dark blotch on operculum. Body tan to dark brownish black. The dark band and stripe become less distinct in bigger specimens. Fins dark-colored (generally black).

Ease of Identification

Meristic characteristics of Pareques iwamotoi

Lateral Lines 1 Interrupted: No
Scales on lateral line 47 - 52
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) absent
Gill rakers
on lower limb 10 - 13
on upper limb 4 - 7
total 14 - 20
Vertebrae
preanal 10
total 25

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 2
Finlets No. Dorsal   0
Ventral  0
Spines total 19 - 21
Soft-rays total 33 - 40
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number 1
Spines total 2
Soft-rays total 7 - 8

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  more or less normal
Position    thoracic  behind origin of D1
Spines     1
Soft-rays   5
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