Food · Fermented foods

Hotaru-ika (Firefly Squid)

ほたるいか (Hotaru-ika)

Also known as: Hotaru-ika, Firefly squid, Watasenia scintillans, 蛍烏賊

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At a glance

CategoryFood
Japanese labeling nameほたるいか
Common Japanese notationsほたるいか, 蛍烏賊, ホタルイカ
OriginFirefly squid (Watasenia scintillans); small bioluminescent squid; principal harvest region Toyama Bay (heritage area, with seasonal mass spawning event); spring season (March-May)
Typical functionsSumiso-ae (vinegared miso dressing) — defining spring preparation, Tsukudani-style boiled-down retail, Toyama Bay regional gift specialty
Regulatory status in JapanStandard food labeling. Toyama Bay regional brand. **Mollusc allergen recommended disclosure.** Note: raw hotaru-ika carries parasite risk — only properly processed/heated retail products.

Hotaru-ika (ほたるいか / 蛍烏賊) — firefly squid (Watasenia scintillans) — is a small bioluminescent squid with brief spring season (March-May). Toyama Bay is the heritage harvest area. Defining preparation is sumiso-ae (vinegared miso). Critical: parasite risk requires properly processed retail products.

Classification

Tags below link to other ingredients sharing the same attribute, so you can pivot from one ingredient to its peers.

Used in (typical product categories)

Finished-product categories that commonly include this ingredient in Japanese-market formulations.

  • Pre-cooked hotaru-ika sumiso-ae retail
  • Toyama Bay regional gift retail

What it is

Watasenia scintillans bioluminescent firefly squid.

Typical uses in Japanese products

Sumiso-ae spring signature.

Tsukudani retail.

For OEM: pre-cooked sumiso-ae retail OEM, Toyama gift retail.

Regulatory classification in Japan

Standard food labeling. Mollusc allergen recommended. Parasite risk processing essential.

Regulatory classification in other markets

EUNiche specialty positioning.
USANiche specialty positioning.
ChinaNiche specialty positioning.
KoreaNiche specialty positioning.

Example products

Example finished products will be added after verification of Toyama Bay origin.

All brand names and product names referenced anywhere on this site are the property of their respective owners. Example entries are provided for informational purposes only and do not imply endorsement.

Related ingredients

References

  1. MEXT Standard Tables of Food Composition — ほたるいか 各形態

Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.

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