🪐 View in 3D Galaxy 📏 View on 3D Scale Stage

🧬 Biological Classification (Kingdom to Species)Octopus minor

Kingdom

Animalia

Phylum

Mollusca

Class

Cephalopoda

Order

Octopoda

Family

Octopodidae

Genus

Octopus

Species

Octopus minor

Cephalopoda🌊 Marine predator / filter feeder

Long-armed octopus

Octopus minor (Long-armed octopus · テナガダコ)

🛡️ Conservation Status (IUCN Red List)DD (Data Deficient)

DDData Deficient

LCLeast Concern

NTNear Threatened

VUVulnerable

ENEndangered

CRCritically End.

EWExtinct in Wild

EXExtinct

Geological Era

Extant

Diet

Marine predator / filter feeder

Length · Height

70cm · No data

Mass · Top Speed

No data · No data

Habitat & Fossil Locality

Rock crevices and muddy or sandy bottoms in shallow coastal waters of Korea, China, and Japan (down to 200 m deep)

💡 Everyday Comparisons for Size, Mass & Speed

💡 It is still popularly eaten today as stir-fried octopus and live sliced octopus, and is also used as a filling ingredient in winter kimchi making (Encyclopedia of Korean Culture).
💡 The Korean proverb 'Spring clams, autumn long-armed octopus' is used to mean that things are at their best in their proper season (Encyclopedia of Korean Culture).
💡 Its maximum length of 70 cm is slightly shorter than the length of a baseball bat (about 85 cm) (Comparison).

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

#낙지#Octopus minor

📖 1. Overview

The long-armed octopus lives in shallow coastal waters of Korea, China, and Japan, and in Korea it is caught in especially large numbers along the coasts of Jeollanam-do and Jeollabuk-do.

🦴 2. Anatomy & Morphology

Its body consists of three parts—a round sac-like mantle, a head, and arms—and its 8 arms are very long relative to its body size. The arms bear 1–2 rows of suckers, and the mouth at the center of the arms contains sharp beaks.

🔍 3. Ecology & Behavior

It lives hidden in rock crevices or mud in shallow seas and feeds on crustaceans. It is usually pale gray to dark gray, turning deep red when in danger or stimulated.

🇰🇷 4. Connection to Korea

Recorded in the historical treatise Jasaneobo as tasty and good for raw dishes, soup, and dried strips, it is still enjoyed today as stir-fried octopus (nakji-bokkeum) and live sliced octopus (sannakji-hoe). It is listed as Nakji (Korean name) on the National List of Species of Korea.