Morphology Data of Gigantactis ios
Identification keys
Abnormalities
Main Ref. Bertelsen, E. and T.W. Pietsch, 2002
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

Esca with a dense cluster of 14-16 short, lanceolate appendages, each with numerous tiny spherical inclusions, emerging from a distal patch of pigment (Ref. 41361); length of illicium 247-256% SL; escal bulb without distal prolongation; escal papillae absent; proximal escal papillae absent; short dentary teeth (longest 1.1-1.4% SL), arranged posteriorly in two longitudinal series; length of caudal fin rays less than 37% SL; weakly developed skin coverage of proximal part of caudal fin; caudal fin rays free nearly to base (Ref. 86949).

Ease of Identification

Meristic characteristics of Gigantactis ios

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 1
Finlets No. Dorsal   
Ventral  
Spines total 0 - 0
Soft-rays total 5 - 5
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 5 - 5

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   17 - 18
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Comments & Corrections
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