Morphology Data of Thalassoma robertsoni
Identification keys
Abnormalities
Main Ref. Allen, G.R., 1995
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral fusiform / normal
Cross section
Dorsal head profile more or less straight
Type of eyes
Type of mouth/snout
Position of mouth terminal
Type of scales
Diagnosis

Principal caudal rays 14 (middle 12 branched); upper and lower procurrent caudal rays 4; terminal phase adults mainly pinkish red with broad yellow bar immediately behind head; initial phase white on lower half with broad dark stripe on upper half, forming rectangular blotches posteriorly in preservative (Ref. 31087).

Ease of Identification

Meristic characteristics of Thalassoma robertsoni

Lateral Lines Interrupted: No
Scales on lateral line 26 - 26
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 4 - 4
Scale rows below lateral line 8 - 9
Scales around caudal peduncle 17 - 18
Barbels
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 17 - 18
Vertebrae
preanal
total 25 - 25

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 8 - 8
Soft-rays total 13 - 13
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 11 - 11

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   15 - 15
Pelvics Attributes  more or less normal
Position    thoracic
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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