Main Ref.	Kirk, H.B., 1911
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	Oscula: prominent on summit of rounded elevations on the upper surface, or on the crests of level ridges formed by the concrescence of such elevations. Color: yellowish. Firm texture. Skeleton structure: primary fibres parallel or radiating to the surface, connected by the secondary fibres forming a rectangular mesh. Oxea: slightly curved with blunt ends; present on primary fibres as loose and irregularly arranged strands, most numerous at the nodes; strand thins out until disappearance, usually about 6 series of spicules. Thinner secondary fibres with few spicules and not polyserial, ends not in contact. Microscleres: minute strongyla; smooth; straight or slightly curved (Ref. 88951).
Ease of Identification

Meristic characteristics of Callyspongia oliveri

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