Morphology Data of Pseudogramma polyacantha
Identification keys
Abnormalities
Main Ref. Smith, M.M., 1986
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 elongated
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 superior
Type of scales ctenoid scales
Diagnosis

Brownish with dusky reticulations (Ref. 6635). No dermal flap or small tentacle dorsally on eye. Two large pores in interorbital space, one on each side close to the edge of the orbit. Tubular anterior nostril near the edge of the snout at the base of the upper lip, the tube is not long; when laid back reaching almost half way to posterior nostril. Second lateral line not fully developed. Longitudinal scale series 46-50(Ref. 27020).

Ease of Identification

Meristic characteristics of Pseudogramma polyacantha

Lateral Lines Interrupted: No
Scales on lateral line 31 - 41
Pored lateral line scales
Scales in lateral series 46 - 50
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 10 - 13
on upper limb 4 - 6
total 17 - 18
Vertebrae
preanal 10 - 10
total 25 - 27

Fins

Dorsal fin(s)

Attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 7 - 8
Soft-rays total 19 - 22
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 15 - 18

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   14 - 17
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Spines     1
Soft-rays   5 - 5
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