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🧬 Biological Classification (Kingdom to Species)Ligia exotica

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Isopoda

Family

Genus

Ligia

Species

Ligia exotica

Malacostraca❔ Diet unknown

Wharf roach

Ligia exotica (Wharf roach · トライフナムシ)

🛡️ Conservation Status (IUCN Red List)NE (Not Evaluated)

Not Evaluated (NE) on the IUCN Red List yet.

Geological Era

Extant

Diet

No data

Length · Height

3~4.5cm · No data

Mass · Top Speed

No data · No data

Habitat & Fossil Locality

Coastal rocks and damp places, mangrove forests, and coastlines throughout Korea

💡 Everyday Comparisons for Size, Mass & Speed

💡 A maximum body length of 4.5 cm is about 1.7 times the diameter of a Korean 500-won coin (about 2.65 cm) (Comparison).
💡 The National List of Species of Korea notes that the wharf roach lives in groups on coastal rocks or damp places and inhabits shores nationwide. It is a crustacean that can be met along any coast in Korea.

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.

#갯강구#Ligia exotica

📖 1. Overview

The wharf roach is an animal in the family Ligiidae that lives in groups on coastal rocks and damp places, widely distributed along all coasts of Korea as well as across Asia and Europe.

🦴 2. Anatomy & Morphology

Its body is oval, slightly convex on the back, and yellowish brown to blackish brown. The head has long 2nd antennae and large eyes, and 7 thoracic segments make up 2/3 of the body. The abdomen has 6 segments including the telson, and the uropods are long and two-branched.

🔍 3. Ecology & Behavior

Eggs are fertilized inside the female's body, hatch in the brood pouch, and pass through a larval stage to become adults. It molts several times a year, shedding the front half first and the back half about two days later. SeaLifeBase records a maximum lifespan of 2 years.