blue-ringed octopus

(redirected from Hapalochlaena)
Also found in: Dictionary.

blue-ringed octopus

Any of at least 10 species of octopus of the genus Hapalochaena, having bright blue spots and found in the Pacific Ocean, esp. near Australia. It poisons its prey with tetrodotoxin. See: tetrodotoxin
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
14.9* 15.3* 14.8* 15.8* 13.6* Hapalochlaena 19.0* 18.6* 18.5* 20.9* 17.2* maculosa Eledone massyae 26.4* 25.9* 26.4* 22.5* 24.5* Group Group 6 7 8 9 10 Group 1 5.1^ 5.7^ 11.2^ 16.1^ 17.6^ Group 2 4.9^ 5.6^ 11.3^ 16.1^ 17.2^ Group 3 4.6^ 6.0^ 11.1^ 16.6^ 17.7^ Octopus 3.4^ 3.6^ 9.5^ 18.1^ 17.3^ bimcauloides Octopus insularis 1.8 4.5^ 5.8^ 8.7^ 17.8^ Octopus mimus 6.2^ 9.1^ 12.3^ 18.7^ Octopus 16.5* 6.1^ 12.8^ 17.2^ hummelincki Amphioctopus sp.
Watching the Australian species Hapalochlaena lunulata in a lab revealed no apparent differences between male octopuses approaching another male and those flirting with a female.
The blue-ringed octopuses Hapalochlaena maculosa and H lunulata - found around the coasts of Australia and parts of south-east Asia - both carry a neurotoxic venom so potent that their relatively painless bite can kill humans in a matter of minutes.