Squaretail Kob and Similar Species
Argyrosomus thorpei
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Open the appSeveral fish can be confused with Squaretail Kob. Here are the key differences.
Species often confused with {name}
Dusky Kob
Argyrosomus japonicus
Key differences: Argyrosomus japonicus has a slightly emarginate to forked caudal fin, whereas A. thorpei has a distinctly truncate caudal fin. A. japonicus also tends to have fewer soft rays in the second dorsal fin (24-27 vs. 26-30 for A. thorpei) and often exhibits a more bronze or golden hue.
Slender Kob
Argyrosomus inodorus
Key differences: Argyrosomus inodorus is generally more slender-bodied and has a more pointed snout. Its caudal fin is typically emarginate, not truncate. It also has fewer soft rays in the second dorsal fin (22-25).
Silver Kob
Argyrosomus hololepidotus
Key differences: Argyrosomus hololepidotus (often confused with A. japonicus in some regions) also possesses an emarginate or slightly forked caudal fin, distinguishing it from the truncate caudal fin of A. thorpei. Fin ray counts and body proportions also differ.
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