Morphology Data of Nezumia soela
Identification keys
Abnormalities
Main Ref. Iwamoto, T. and A. Williams, 1999
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors
Remarks

Descriptive characteristics of juvenile and adult

Striking features long whip-like tail
Body shape lateral elongated
Cross section compressed
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout other (see diagnosis)
Position of mouth sub-terminal/inferior
Type of scales ctenoid scales
Diagnosis

Pelvic fin rays 10-11; first dorsal fin with 10 or 11 segmented rays (rarely 12); underside of snout with broad naked median swath, pores of lateralis system small, inconspicuous; body scales covered with narrow, lanceolate spinules in slightly convergent rows; 7-9.5 scale rows below origin of second dorsal fin, 36-41 lateral line scales over distance equal to predorsal length; trunk lacking prominent broad dark girdle; first dorsal fin all black; anterior dermal window of light organ more or less on transverse line connecting pelvic fin insertions; upper jaws 29-33% of HL; orbit to preopercular distance 33-38% of HL; inner gill rakers on first arch 10-13.

Ease of Identification

Meristic characteristics of Nezumia soela

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 2
Finlets No. Dorsal   
Ventral  
Spines total 2 - 2
Soft-rays total
Adipose fin

Caudal fin

Attributes pointed; confluent

Anal fin(s)

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

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   18 - 22
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Spines     0
Soft-rays   10 - 11
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