Morphology Data of Benthodesmus tuckeri
Identification keys
Abnormalities
Main Ref. Nakamura, I. and N.V. Parin, 1993
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features striking shape of body
Body shape lateral eel-like
Cross section compressed
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 scales embedded or partly/completely absent
Diagnosis

Body extremely elongate and compressed. Pelvic fins diminutive, composed of a scale-like spine and a rudimentary soft ray. Body is silvery, jaws and opercle blackish. Inside of mouth and gill cavities black.

Ease of Identification

Meristic characteristics of Benthodesmus tuckeri

Lateral Lines 1 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 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total
Vertebrae
preanal
total 133 - 142

Fins

Dorsal fin(s)

Attributes extending over most of the back length
Fins number 1notched No
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 39 - 44
Soft-rays total 88 - 96
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 1
Spines total 2 - 2
Soft-rays total 76 - 83

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   
Pelvics Attributes  other (see diagnosis)
Position    thoracic  behind origin of D1
Spines     1
Soft-rays   1 - 1
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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