Morphology Data of Lutjanus rivulatus
Identification keys
Abnormalities
Main Ref. Anderson, W.D. Jr. and G.R. Allen, 2001
Appearance refers to
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 oval
Dorsal head profile more or less straight
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 very deep, greatest depth 2.1-2.4 in SL; lips greatly thickened in adults; preopercular notch and knob moderately developed; vomerine tooth patch crescentic, without a medial posterior extension; tongue smooth, no teeth; gill rakers of first gill arch 6 + 11-12 =17-18; caudal fin truncate or slightly emarginate. Colour generally brown with a reddish tinge; each scale on side with a pale

brown border and 2-3 small bluish white spots in central portion; head with numerous undulating blue lines; lips tan; fins largely yellowish to dusky grey-brown; juveniles with a series of 3-8 brown bars on sides and a chalky white spot, with a broad blackish margin, present below anterior soft dorsal-fin rays at level of lateral line, preceded by similar-sized black spot on middle of side (Ref. 9821, 90102).

Description: Dorsal profile of head steeply sloped, preorbital bone broad, about twice the eye diameter; scale rows on back rising obliquely above lateral line (Ref. 9821).

Ease of Identification

Meristic characteristics of Lutjanus rivulatus

Lateral Lines 1 Interrupted: No
Scales on lateral line
Pored lateral line scales 47 - 49
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 11 - 12
on upper limb 6 - 6
total 17 - 18
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 10 - 10
Soft-rays total 15 - 16
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

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

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   17 - 17
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Spines     1
Soft-rays   5 - 5
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