Morphology Data of Lethrinus ornatus
Identification keys
Abnormalities
Main Ref. Carpenter, K.E., 2001
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 oval
Dorsal head profile clearly convex
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales ctenoid scales
Diagnosis

This species is distinguished by the following characters: body relatively deep, its depth 2.3-2.6 times in standard length. Head length 0.8-0.9 times in body depth, 2.7-3 times in SL, dorsal profile near eye convex; snout length about 2-2.5 times in HL, measured without the lip the snout is 0.9-1.1 times in cheek height, its dorsal profile nearly straight or slightly concave, snout angle relative to upper jaw between 65° and 75°; interorbital space convex; posterior nostril a longitudinal oblong opening, closer to orbit than anterior nostril; eye situated close to dorsal profile, its length 3.3-4.1 times in HL; cheek height 2.2-2.8 times in HL; lateral teeth in jaws rounded with points or molars; outer surface of maxilla usually smooth, sometimes with a longitudinal ridge. D X,9 with the 4th or 5th dorsal-fin spine the longest, its length 2.7-3.3 times in body depth; A III,8 with the first soft ray usually the longest, its length longer than length of base of soft-rayed portion of anal fin and 1.1-1.5 times in length of entire anal-fin base; pectoral-fin rays 13; pelvic-fin membranes between rays closest to body without dense melanophores; cheek without scales; 46-47 lateral-line scales; 5 ½ scale rows between lateral line and base of middle dorsal-fin spines; 15-16 scale rows in transverse series between origin of anal fin and lateral line; 13-15 rows in lower series of scales around caudal peduncle; usually 3-8 scales in supratemporal patch; inner surface of pectoral-fin base densely covered with scales; posterior angle of operculum fully scaly. Colour of body dusky whitish, lighter below, with 5-6 orange stripes; posterior edge of opercle and preopercle bright red (the former more conspicuous); head brown or tan, sometimes a red spot on lower front edge of eye; pectoral fins orangish; pelvic and anal fins, and most of dorsal fin whitish; edge of dorsal and caudal fins reddish (Ref. 114226).

Ease of Identification

Meristic characteristics of Lethrinus ornatus

Lateral Lines 1 Interrupted: No
Scales on lateral line 45 - 49
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 5.5 - 5.5
Scale rows below lateral line 15 - 16
Scales around caudal peduncle 13 - 15
Barbels 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 4 - 6
on upper limb 4 - 6
total 8 - 12
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes extending over most of the back length
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 10 - 10
Soft-rays total 9 - 9
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 8 - 8

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   13 - 13
Pelvics Attributes  more or less normal
Position    thoracic  beneath origin of D1
Spines     1
Soft-rays   5 - 5
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