Morphology Data of Equulites popei
Identification keys
Main Ref. Suzuki, T. and S. Kimura, 2017
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features
Body shape lateral fusiform / normal
Cross section compressed
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

This species of the Equulites elongatus group is distinguished by the following set of characters: eye diameter 82-137% postorbital head length; distance from pelvic-fin insertion to center of anus 35-50% of the distance from pelvic-fin insertion to anal-fin origin; scales above lateral line 8-13, below 12-19; dorsolateral body with large dark blotches rarely forming ring marks (0-2) and a few dark spots (0-5) that are smaller than a half of pupil diameter; the tips of neural and hemal spines of fourth preural centrum is less expanding, distal expansion ratios of neural and hemal spines of the fourth preural centrum 2.1-3.9. Colour of the head and ventrolateral body almost uniformly silvery white; snout tip blackish; upper posterior margin of the operculum pale yellow; dorsolateral body silvery brown with scattered dark blotches; pectoral axil dark and pectoral fin pale yellow; black lines along the caudal-fin rays, the posterior margin of caudal fin dark while other fins are colourless (Ref. 120651).

Ease of Identification

Meristic characteristics of Equulites popei

Lateral Lines Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line 8 - 13
Scale rows below lateral line 12 - 19
Scales around caudal peduncle
Gill clefts (sharks/rays only)
Gill rakers
on lower limb 12 - 18
on upper limb 3 - 7


Dorsal fin(s)

Fins number
Finlets No. Dorsal   
Spines total 8 - 8
Soft-rays total 16 - 16
Adipose fin

Caudal fin


Anal fin(s)

Fins number 1
Spines total 3 - 3
Soft-rays total 14 - 14

Paired fins

Pectoral Attributes  
Spines     0
Soft-rays   13 - 18
Pelvics Attributes  
Spines     1
Soft-rays   5 - 5
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Capuli, Estelita Emily
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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