Morphology Data of Eurypegasus papilio
Identification keys
Main Ref. Palsson, W.A. and T.W. Pietsch, 1989
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features flaps
Body shape lateral other
Cross section flattened
Dorsal head profile
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth sub-terminal/inferior
Type of scales bony plates or armour

Body color olivaceous to yellow olive dorsally and laterally; whitish ventrally; 3 indistinct, double bands of light red on carapace and tail. Species with 3 pairs of dorsolateral body plates; 4 pairs of ventrolateral body plates; a pair of deep pits on dorsal surface of head; 8 (rarely 9) mobile tail rings; concave suborbital shelf, eyes visible in ventral view. Dorsal and ventral ridges of rostrum almost equally expanded with laterally directed denticles. Medial spine on dorsal surface of last tail ring posteriorly directed.

Ease of Identification

Meristic characteristics of Eurypegasus papilio

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)
Gill rakers
on lower limb
on upper limb
total 19 - 19


Dorsal fin(s)

Attributes no striking attributes
Fins number 1
Finlets No. Dorsal   
Spines total 0 - 0
Soft-rays total 5 - 5
Adipose fin absent

Caudal fin

Attributes more or less truncate

Anal fin(s)

Fins number 1
Spines total 0 - 0
Soft-rays total 5 - 5

Paired fins

Pectoral Attributes  transformed to 'aerofoils'
Spines     0
Soft-rays   11 - 12
Pelvics Attributes  other (see diagnosis)
Position    thoracic  before origin of D1
Spines     1
Soft-rays   2 - 2
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
Modified by Froese, Rainer
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17