description Carybdea rastoni (Jimble) Overview
Carybdea rastonii, commonly called the jimble, is a small species of box jellyfish recorded from temperate coastal waters of Australia and New Zealand. Its transparent, box-shaped bell bears four tentacles, one extending from each lower corner. Contact with the tentacles can produce a painful sting, so swimmers and shoreline visitors may encounter it as a minor marine hazard even though it is not associated with the severe syndrome caused by some tropical box jellyfish.
help Carybdea rastoni (Jimble) FAQ
How can I identify a jimble, Carybdea rastoni?
A jimble has a transparent box-shaped bell about 1.5 to 3 centimeters across and four tentacles, one from each lower corner. The tentacles are commonly listed at roughly 5 to 15 centimeters long. [Beachsafe jimble guide](https://beachsafe.org.au/surf-safety/jimble)
Is a jimble as dangerous as Chironex fleckeri?
A jimble can deliver a painful sting, but it is not the same high-risk species as Chironex fleckeri, the major Australian box jellyfish associated with life-threatening stings. Severe, generalized, or persistent symptoms still require urgent medical attention. [Healthdirect jellyfish guidance](https://www.healthdirect.gov.au/jellyfish-stings)
Where are jimble jellyfish found?
Australian beach-safety records list the jimble as occurring across Australia, with many records from South Australia, Western Australia, and southern New South Wales. Spring and summer are described as higher-risk periods in those waters. [Beachsafe jimble guide](https://beachsafe.org.au/surf-safety/jimble)
What should I do after being stung by a jimble?
Leave the water, remove any adhering tentacles, rinse the area with seawater rather than fresh water, and use hot water for about 20 minutes if it can be tolerated. Call 000 if pain persists, becomes generalized, or affects a large or sensitive area such as the eyes. [Beachsafe first-aid guidance](https://beachsafe.org.au/surf-safety/jimble)
explore Explore More
Reviews & Comments
Write a Review
Be the first to review
Share your thoughts with the community and help others make better decisions.
