Morphology Data of Photonectes sphaerolampas
Identification keys
Abnormalities
Main Ref. Prokofiev, A.M. and C. Klepadlo, 2019
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 compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales
Diagnosis

This species is distinguished by the following set of characters: mental barbel with large spherical bulb bearing darkly pigmented terminal appendage splitting at tip into short filaments; a solid longitudinal band of blue luminous tissue present along flanks from gill opening to caudal-fin base; a longitudinal row of small roundish spots of blue luminous tissue above the IV photophores on each side of body, connecting with row on opposite side by transverse interrupted streaks of blue luminous tissue alternating with anterior 12 PV photophores; a high number of AC photophores (14-18) (Ref. 120405).

Ease of Identification

Meristic characteristics of Photonectes sphaerolampas

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 48 - 48

Fins

Dorsal fin(s)

Attributes
Fins number
Finlets No. Dorsal   
Ventral  
Spines total
Soft-rays total 16 - 21
Adipose fin

Caudal fin

Attributes

Anal fin(s)

Fins number
Spines total
Soft-rays total 18 - 23

Paired fins

Pectoral Attributes  
Spines     
Soft-rays   0 - 0
Pelvics Attributes  
Position    
Spines     
Soft-rays   7 - 7
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