Main Ref.	Trono, G.C. Jr., 2001
Appearance refers to

Sex attributes

specialized organs
different appearance
different colors
remarks

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Diagnosis	Thallus forming a dark green, amorphous to convoluted spongy mass, composed of central medulla and cortex. Medulla consisting of branched cylindrical filaments, their tips inflated into cylindrical to clavate utricles forming the cortex.Hairs or hair scars occur in 1 to 3 vertical rows, at some distance from the tip of the utricle. Gametangia cylindrical and tapering towards both ends, borne at the side of the proximal portion of the utricle. Amorphous clumps up to 5 cm in diameter (Ref. 80758).
Ease of Identification

Meristic characteristics of Codium arabicum

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
Finlets No.	Dorsal
	Ventral
Spines total
Soft-rays total
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral	Attributes
	spines
	soft-rays
Pelvics	Attributes
	Position
	spines
	soft-rays