Morphology Data of Paracheilinus attenuatus
Identification keys
Abnormalities
Main Ref. Randall, J.E., 1999
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 fusiform / normal
Cross section
Dorsal head profile
Type of eyes more or less normal
Type of mouth/snout
Position of mouth terminal
Type of scales cycloid scales
Diagnosis

Median predorsal scales 5; horizontal scale rows on cheek below eye 2; body depth 3.2-3.55 in SL; ; head length 2.9-3.05 in SL; snout length 3.9-4.1 in HL; first dorsal soft ray of adults long and filamentous; caudal fin rounded in young, lanceolate with strongly concave upper and lower posterior margin in adults, the fin length 2.9-3.6 in SL; pelvic fin short, 1.6-1.8 in HL. Adult males in life light orange, shading to yellow ventrally, with four longitudinal lavender bands on body which link to three narrow lavender bands extending posteriorly from eye; dorsal fin yellow with a broad blue-edged red zone posteriorly in fin, the filament red. Small females with the same but narrower stripes, dark-edged blue lines dorsally on head, a large dark brown spot at base of dorsal fin below juncture of spinous and soft portions, and a small dark brown spot dorsoposteriorly on caudal peduncle.

Ease of Identification

Meristic characteristics of Paracheilinus attenuatus

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales 20 - 25
Scales in lateral series
Scale rows above lateral line 2 - 2
Scale rows below lateral line 6 - 6
Scales around caudal peduncle 16 - 16
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 12 - 14
Vertebrae
preanal
total 25 - 25

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 9 - 9
Soft-rays total 11 - 11
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number
Spines total 3 - 3
Soft-rays total 9 - 9

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   14 - 14
Pelvics Attributes  more or less normal
Position    thoracic  behind origin of D1
Spines     1
Soft-rays   5 - 5
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