Morphology Data of Gigantactis gracilicauda
Identification keys
Abnormalities
Main Ref. Pietsch, T.W., 2009
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
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

Metamorphosed females distinguished by the following characteristics: length of illicium less than 120% SL (104-107%SL); escal bulb with an elongate darkly pigmented spinulose distal prolongation; presence of short distal and slender proximal escal filaments; absence of distally flattened escal papillae; illicium without posterior pair of papillae; dentary teeth in posterior part of jaw in three longitudinal series; rays of caudal fin less than 30% SL (Ref. 86949).

Ease of Identification

Meristic characteristics of Gigantactis gracilicauda

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 5 - 6
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 5 - 6

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   18 - 19
Pelvics Attributes  
Position    
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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