Morphology Data of Eurypharynx pelecanoides
Identification keys
Main Ref. Smith, D.G., 1997
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance always different morphology between mature adults
Different colors
Remarks Males undergo pronounced morphological changes at maturity: the olfactory organs enlarge, the jaws degenerate, and the teeth are reduced or lost.

Descriptive characteristics of juvenile and adult

Striking features light organs
Body shape lateral eel-like
Cross section
Dorsal head profile more or less straight
Type of eyes
Type of mouth/snout other (see diagnosis)
Position of mouth
Type of scales

Mouth greatly enlarged by a backward extension of jaws, gape comprising half or more of preanal length; buccal cavity greatly distensible. Tail attenuated and ending in an expanded, luminous caudal organ. Caudal fin absent; scales absent; lateral line without pores, instead with groups of elevated tubules.

Ease of Identification

Meristic characteristics of Eurypharynx pelecanoides

Lateral Lines 1 Interrupted: No
Scales on lateral line 0
Pored lateral line scales 0
Scales in lateral series 0
Scale rows above lateral line 0
Scale rows below lateral line 0
Scales around caudal peduncle 0
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb


Dorsal fin(s)

Fins number 1
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 0 - 0
Soft-rays total
Adipose fin absent

Caudal fin

Attributes more or less truncate; confluent

Anal fin(s)

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

Paired fins

Pectoral Attributes  
Pelvics Attributes  
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Binohlan, Crispina B.
Modified by Froese, Rainer
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