Morphology Data of Polyacanthonotus rissoanus
Identification keys
Main Ref. Sulak, K.J., 1986
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 eel-like
Cross section
Dorsal head profile
Type of eyes
Type of mouth/snout
Position of mouth
Type of scales

Same body coloration as P. africanus but lateral line lighter and less distinct (Ref. 6584). Maxilla fails to extend back to the posterior of nostril. Small mouth, short preoral snout. Light tan with black tips (Ref. 37108).

Ease of Identification

Meristic characteristics of Polyacanthonotus rissoanus

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
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 23 - 28


Dorsal fin(s)

Attributes extending over most of the back length
Fins number
Finlets No. Dorsal   
Spines total 26 - 36
Soft-rays total 0 - 0
Adipose fin

Caudal fin


Anal fin(s)

Fins number
Spines total
Soft-rays total

Paired fins

Pectoral Attributes  
Spines     1
Soft-rays   10 - 16
Pelvics Attributes  
Spines     1
Soft-rays   7 - 11
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Garilao, Cristina V.
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