Morphology Data of Aluterus monoceros
Identification keys
Abnormalities
Main Ref. Myers, R.F., 1991
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 short and / or deep
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Rudimentary pelvic spine disappears in large specimen (Ref. 36453). Snout convex in adults (Ref. 1602). Sandy to grey with small brown spots above; soft dorsal and anal fins pale yellowish to brownish; caudal membrane blackish brown (Ref. 4421).

Description: Characterized further by juveniles having reticulate pattern of pale lines and grey blotches; convex dorsal and ventral profiles of head; terminal mouth; snout much longer than caudal fin; depth of body at anal fin origin 2.5-2.8 in SL (Ref. 90102).

Ease of Identification

Meristic characteristics of Aluterus monoceros

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

Fins

Dorsal fin(s)

Attributes
Fins number 2
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 2 - 2
Soft-rays total 45 - 52
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 47 - 53

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   14 - 15
Pelvics Attributes  other (see diagnosis)
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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