Morphology Data of Lampanyctus crocodilus
Identification keys
Abnormalities
Main Ref. Hulley, P.A., 1984
Appearance refers to Male; Female
Bones in OsteoBase

Sex attributes

Specialized organs no special organs
Different appearance males alike females
Different colors males alike females
Remarks

Descriptive characteristics of juvenile and adult

Striking features light organs
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 more or less normal
Position of mouth terminal
Type of scales
Diagnosis

Distinguished from other species of Lampanyctus by the pattern of its photophores and by its short pectoral fins located just behind gill opening (Ref. 5571). Photophores along ventral post-anal region (AO): 6 (7) + 8 (7-9) = 14 (13-16) (Ref. 4775).

Ease of Identification

Meristic characteristics of Lampanyctus crocodilus

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 0
Gill clefts (sharks/rays only) absent
Gill rakers
on lower limb 11 - 13
on upper limb 4 - 5
total 16 - 18
Vertebrae
preanal
total

Fins

Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total
Soft-rays total 13 - 14
Adipose fin present

Caudal fin

Attributes forked; more or less normal

Anal fin(s)

Fins number 1
Spines total
Soft-rays total 16 - 18

Paired fins

Pectoral Attributes  more or less normal
Spines     
Soft-rays   13 - 15
Pelvics Attributes  more or less normal
Position    abdominal  before origin of D1
Spines     
Soft-rays   
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
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