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Animal profile

Bigfin Reef Squid

Sepioteuthis lessoniana

CephalopodaShallow coastal reefs, seagrass and mangrove waters of the Indo-Pacific

Field profile

The bigfin reef squid is a fast-growing coastal squid with fins running nearly the whole length of the mantle. It is widely fished and farmed in East and Southeast Asia and is one of the few squid reared through multiple generations in captivity.

Scope note

This is an editorial profile, not a diagnostic field-identification guide or a substitute for current conservation assessments. Follow the cited sources on each fact for the evidence trail.

Published field notes

2023-03-08

Bigfin Reef Squid

One squid name covers at least three species

Sepioteuthis lessoniana was long treated as a single wide-ranging species spread across the Indo-Pacific. Genetic work in Japanese and other regional waters found deeply divergent lineages living side by side in the same waters without interbreeding.

Read with evidence →

Bigfin Reef Squid | Daily Animal Facts