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Ocean animals

Heptacarpus geniculatus

Amazing fact

The flexed shrimp has a straight rostrum longer than the shell covering its head and chest.

국립해양생물자원관
Heptacarpus geniculatus in its habitat (illustration)

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An illustration based on the real animal.

A little discovery to share.

The flexed shrimp has a straight rostrum longer than the shell covering its head and chest.

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THE REAL WORLD

The real Heptacarpus geniculatus

Scientific name
Heptacarpus geniculatus
Japanese name
コシマガリモエビ
Group
Ocean animals
Class
Malacostraca
Order
Decapoda
Family
Thoridae
Genus
Heptacarpus
Facts about the real animal.
01

It lives in coastal waters from Kyushu to Sakhalin.

02

Its body bends sharply right around the "waist."

How the Heptacarpus geniculatus lives

It is found on the leaves and branches of eelgrass and Sargassum seaweeds.

新潟市水族館 マリンピア日本海

Basic data

Range
The coasts from Kyushu to Sakhalin
鳥羽水族館

Where the Heptacarpus geniculatus has been recorded

World map with dots where the Heptacarpus geniculatus has been recorded
Each dot marks a place with observations or specimens shared on GBIF. Some records are of animals that strayed or were brought by people, so the dots are not always where the animal lives.

Records: GBIF.org (CC0 and CC BY 4.0 records, retrieved 2026-11-07). Map: Natural EarthSee the records on GBIF

Where it livesJapanAsiaCoasts

Watch wild animals from a distance. Do not touch or feed them, and take care of the places where they live.

Names around the world

Names come from Wikidata and iNaturalist records. Where a language has no recorded name, we use the scientific name.

Sources and how we check

We check each fact against its source. The illustrations simplify how the real animal looks.

The classification (class, order, family, genus) follows Wikidata records, checked against GBIF. Classifications can change as research goes on.

The basic data are the values given in each source. They vary with how the animal is measured, whether it is male or female, and whether it lives in the wild or in captivity.

This page was translated from the original Japanese with the help of AI.

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