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Xanthias joanneae Crab

Xanthias joanneae is commonly referred to as Crab. Difficulty in the aquarium: There are no reports available yet that this animal has already been kept in captivity successfully. Toxicity: Toxic hazard unknown.


Profilbild Urheber Bas Johan

Xanthias joanneae,Récif le Sournois - Passe de Boulari 2025


Courtesy of the author Bas Johan Bas Johan. Please visit www.inaturalist.org for more information.

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lexID:
17990 
AphiaID:
881862 
Scientific:
Xanthias joanneae 
German:
Krabbe 
English:
Crab 
Category:
Crabs 
Family tree:
Animalia (Kingdom) > Arthropoda (Phylum) > Malacostraca (Class) > Decapoda (Order) > Xanthidae (Family) > Xanthias (Genus) > joanneae (Species) 
Initial determination:
Mendoza, 2013 
Occurrence:
Andaman and Nicobar Islands, India, Japan, New Caledonia, Philippines, Taiwan 
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:
3 - 290 Meter 
Habitats:
Coral rubble substrate, Deep sea, Intertidal zone, Tidal Zone, Reef flats, Reef slopes, Rocky, hard seabeds, Sandy sea floors, Seawater, Sea water 
Size:
0,5 cm 
Temperature:
°F - 82.4 °F (°C - 28°C) 
Food:
No reliable information available 
Difficulty:
There are no reports available yet that this animal has already been kept in captivity successfully 
Offspring:
Not available as offspring 
Toxicity:
Toxic hazard unknown 
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:
2025-12-25 16:52:21 

Info

Xanthias joanneae Mendoza, 2013

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.

Similar to Xanthias maculatus.


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