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Liomera venosa Ruby Reef Crab

Liomera venosa is commonly referred to as Ruby Reef Crab. Difficulty in the aquarium: There are no reports available yet that this animal has already been kept in captivity successfully.


Profilbild Urheber Hitoshi Takakura (Flickr Brachyura), Japan

Liomera venosa, Japan 1988_0076-01

Place: Tip of Ose Cape, Numazu city, Shizuoka pref., Japan (-6m, rocky bottom, under rock).Comment: carapace width=3cm (approximately).
Courtesy of the author Hitoshi Takakura (Flickr Brachyura), Japan . Please visit www.flickr.com for more information.

Uploaded by Muelly.

Image detail


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lexID:
18218 
AphiaID:
208988 
Scientific:
Liomera venosa 
German:
Rote Rundkrabbe 
English:
Ruby Reef Crab 
Category:
Krabbor 
Family tree:
Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family) > Liomera (Genus) > venosa (Species) 
Initial determination:
(H. Milne Edwards, ), 1834 
Occurrence:
Australia, Christmas Islands, French Polynesia, Japan, Mauritania, Mauritius, New Caledonia, Singapore, Sri Lanka, Tahiti 
Marine Zone:
Subtidal, sublittoral, infralittoral, deep zone of the oceans from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 m water depth. neritic. 
Sea depth:
1 - 30 Meter 
Habitats:
Coastal waters, Rocky, hard seabeds, Seawater, Sea water, Under rocks 
Size:
3,5 cm 
Food:
No reliable information available 
Difficulty:
There are no reports available yet that this animal has already been kept in captivity successfully 
Offspring:
None 
CITES:
Not evaluated 
Red List:
Not evaluated (NE) 
Related species at
Catalog of Life
:
 
More related species
in this lexicon
:
 
Author:
Publisher:
Meerwasser-Lexikon.de
Created:
Last edit:
2026-03-15 18:21:21 

Info

Liomera venosa (H. Milne Edwards, 1834)

Type locality: Mauritius.

Many species of the family Xanthidae can be poisonous, although they themselves have no poisonous apparatus (poisonous teeth, poisonous spines, poisonous glands in the skin), the consumption of these crustaceans can even be fatal for humans. Such animals are considered passive-poisonous.
The toxins of crabs (saxitoxin and tetrodotoxin) are produced by endobacteria and stored in the flesh of the crab, these e are highly potent and similar to the neurotoxins of puffer fish and just as deadly.
In its raw and cooked meat, consumption of the crab meat is toxic to humans!

Please be sure to clarify whether the meat of these crabs is toxic or non-toxic before eating it!
Call an emergency doctor immediately at the first signs of poisoning (e.g. breathing problems, muscle cramps)!

The good news is there’s no way you can be exposed to these toxins if you don’t try to eat these crabs – a bite or a jab isn’t going to do the job.

The bad news for those who unwittingly consume these crabs is that cooking the meat isn’t going to make the toxins any less effective.

Fortunately, toxic crabs don’t want to be eaten just as much as we shouldn’t be eating them, so they help us out with their glorious warning colours.

Synonymised names
Cancer obtusus De Haan, 1835 · unaccepted > junior subjective synonym
Carpilius venosus H. Milne Edwards, 1834 · unaccepted > superseded combination
Carpilodes granulosus Haswell, 1882 · unaccepted > junior subjective synonym
Carpilodes socius Lanchester, 1900 · unaccepted > junior subjective synonym

External links

  1. Atlas of Living Australia (en). Abgerufen am 15.03.2026.
  2. Crabs of Japan (en). Abgerufen am 15.03.2026.

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